./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd36b7f18dbd530fce94e0943ff58c16da276fcc41b96fdafde87c3c69036175 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:44:59,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:44:59,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:44:59,854 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:44:59,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:44:59,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:44:59,884 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:44:59,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:44:59,884 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:44:59,884 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:44:59,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:44:59,885 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:44:59,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:44:59,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:44:59,886 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:44:59,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:44:59,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:44:59,886 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:44:59,887 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:44:59,888 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:44:59,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:44:59,888 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:44:59,888 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:44:59,888 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:44:59,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:44:59,888 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:44:59,888 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:44:59,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:44:59,889 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:44:59,890 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:44:59,890 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/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 -> cd36b7f18dbd530fce94e0943ff58c16da276fcc41b96fdafde87c3c69036175 [2025-03-17 19:45:00,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:45:00,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:45:00,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:45:00,150 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:45:00,151 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:45:00,152 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2025-03-17 19:45:01,365 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da981404b/3bd5e2e09da84144939551df84373e21/FLAG5328d76a2 [2025-03-17 19:45:01,626 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:45:01,627 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum-alt.wvr.c [2025-03-17 19:45:01,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da981404b/3bd5e2e09da84144939551df84373e21/FLAG5328d76a2 [2025-03-17 19:45:01,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da981404b/3bd5e2e09da84144939551df84373e21 [2025-03-17 19:45:01,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:45:01,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:45:01,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:45:01,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:45:01,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:45:01,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54993f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01, skipping insertion in model container [2025-03-17 19:45:01,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:45:01,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:45:01,837 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:45:01,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:45:01,874 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:45:01,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01 WrapperNode [2025-03-17 19:45:01,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:45:01,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:45:01,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:45:01,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:45:01,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,916 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 224 [2025-03-17 19:45:01,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:45:01,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:45:01,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:45:01,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:45:01,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,942 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-17 19:45:01,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,947 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,959 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:45:01,959 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:45:01,960 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:45:01,960 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:45:01,964 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (1/1) ... [2025-03-17 19:45:01,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:45:01,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:45:01,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:45:01,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:45:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:45:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:45:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:45:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:45:02,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:45:02,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-17 19:45:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-17 19:45:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:45:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:45:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:45:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:45:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:45:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:45:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:45:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:45:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:45:02,019 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:45:02,099 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:45:02,101 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:45:02,447 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:45:02,448 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:45:02,660 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:45:02,661 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:45:02,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:45:02 BoogieIcfgContainer [2025-03-17 19:45:02,661 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:45:02,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:45:02,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:45:02,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:45:02,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:45:01" (1/3) ... [2025-03-17 19:45:02,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14963cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:45:02, skipping insertion in model container [2025-03-17 19:45:02,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:45:01" (2/3) ... [2025-03-17 19:45:02,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14963cb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:45:02, skipping insertion in model container [2025-03-17 19:45:02,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:45:02" (3/3) ... [2025-03-17 19:45:02,668 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum-alt.wvr.c [2025-03-17 19:45:02,681 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:45:02,682 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum-alt.wvr.c that has 4 procedures, 90 locations, 1 initial locations, 4 loop locations, and 26 error locations. [2025-03-17 19:45:02,683 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:45:02,764 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-17 19:45:02,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 99 transitions, 219 flow [2025-03-17 19:45:02,837 INFO L124 PetriNetUnfolderBase]: 10/96 cut-off events. [2025-03-17 19:45:02,838 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 19:45:02,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 96 events. 10/96 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 360 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 88. Up to 2 conditions per place. [2025-03-17 19:45:02,843 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 99 transitions, 219 flow [2025-03-17 19:45:02,846 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 94 places, 94 transitions, 203 flow [2025-03-17 19:45:02,851 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:45:02,860 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;@5615fee0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:45:02,860 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2025-03-17 19:45:02,867 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:45:02,868 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-17 19:45:02,868 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:45:02,868 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:02,868 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 19:45:02,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:02,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:02,873 INFO L85 PathProgramCache]: Analyzing trace with hash 634497, now seen corresponding path program 1 times [2025-03-17 19:45:02,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:02,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334084294] [2025-03-17 19:45:02,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:02,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:02,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:45:02,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:45:02,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:02,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:03,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:03,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:03,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334084294] [2025-03-17 19:45:03,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334084294] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:03,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:03,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:45:03,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961170685] [2025-03-17 19:45:03,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:03,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:45:03,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:03,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:45:03,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:45:03,093 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2025-03-17 19:45:03,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2025-03-17 19:45:03,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:03,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2025-03-17 19:45:03,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:04,221 INFO L124 PetriNetUnfolderBase]: 6464/12200 cut-off events. [2025-03-17 19:45:04,222 INFO L125 PetriNetUnfolderBase]: For 378/378 co-relation queries the response was YES. [2025-03-17 19:45:04,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21127 conditions, 12200 events. 6464/12200 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 102118 event pairs, 4546 based on Foata normal form. 1/10078 useless extension candidates. Maximal degree in co-relation 20104. Up to 8627 conditions per place. [2025-03-17 19:45:04,305 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 40 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2025-03-17 19:45:04,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 93 transitions, 289 flow [2025-03-17 19:45:04,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:45:04,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:45:04,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2025-03-17 19:45:04,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2025-03-17 19:45:04,321 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 203 flow. Second operand 4 states and 253 transitions. [2025-03-17 19:45:04,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 93 transitions, 289 flow [2025-03-17 19:45:04,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 93 transitions, 280 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 19:45:04,335 INFO L231 Difference]: Finished difference. Result has 91 places, 93 transitions, 200 flow [2025-03-17 19:45:04,337 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=91, PETRI_TRANSITIONS=93} [2025-03-17 19:45:04,341 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -3 predicate places. [2025-03-17 19:45:04,342 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 93 transitions, 200 flow [2025-03-17 19:45:04,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2025-03-17 19:45:04,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:04,343 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-17 19:45:04,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:45:04,344 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:04,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:04,344 INFO L85 PathProgramCache]: Analyzing trace with hash 19669937, now seen corresponding path program 1 times [2025-03-17 19:45:04,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:04,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786062758] [2025-03-17 19:45:04,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:04,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:04,352 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:45:04,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:45:04,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:04,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:04,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:04,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786062758] [2025-03-17 19:45:04,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786062758] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:04,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:04,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:45:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806758727] [2025-03-17 19:45:04,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:04,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:45:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:04,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:45:04,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:45:04,420 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2025-03-17 19:45:04,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 93 transitions, 200 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2025-03-17 19:45:04,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:04,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2025-03-17 19:45:04,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:05,136 INFO L124 PetriNetUnfolderBase]: 6465/12204 cut-off events. [2025-03-17 19:45:05,136 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2025-03-17 19:45:05,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21017 conditions, 12204 events. 6465/12204 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 102121 event pairs, 4546 based on Foata normal form. 1/10082 useless extension candidates. Maximal degree in co-relation 20989. Up to 8632 conditions per place. [2025-03-17 19:45:05,189 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 43 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2025-03-17 19:45:05,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 96 transitions, 306 flow [2025-03-17 19:45:05,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:45:05,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:45:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 256 transitions. [2025-03-17 19:45:05,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6464646464646465 [2025-03-17 19:45:05,192 INFO L175 Difference]: Start difference. First operand has 91 places, 93 transitions, 200 flow. Second operand 4 states and 256 transitions. [2025-03-17 19:45:05,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 96 transitions, 306 flow [2025-03-17 19:45:05,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 96 transitions, 292 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:45:05,195 INFO L231 Difference]: Finished difference. Result has 93 places, 96 transitions, 219 flow [2025-03-17 19:45:05,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=93, PETRI_TRANSITIONS=96} [2025-03-17 19:45:05,196 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, -1 predicate places. [2025-03-17 19:45:05,197 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 96 transitions, 219 flow [2025-03-17 19:45:05,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 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) [2025-03-17 19:45:05,197 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:05,197 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-17 19:45:05,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:45:05,198 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:05,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:05,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1872174399, now seen corresponding path program 1 times [2025-03-17 19:45:05,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:05,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210326041] [2025-03-17 19:45:05,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:05,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:05,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:45:05,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:45:05,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:05,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:05,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:05,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:05,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210326041] [2025-03-17 19:45:05,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210326041] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:45:05,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51430899] [2025-03-17 19:45:05,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:05,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:45:05,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:45:05,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:45:05,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:45:05,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:45:05,357 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:45:05,357 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:05,357 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:05,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:45:05,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:45:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:05,383 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:45:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:05,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51430899] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:45:05,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:45:05,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2025-03-17 19:45:05,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081833383] [2025-03-17 19:45:05,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:45:05,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 19:45:05,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:05,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 19:45:05,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:45:05,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 99 [2025-03-17 19:45:05,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 96 transitions, 219 flow. Second operand has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 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) [2025-03-17 19:45:05,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:05,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 99 [2025-03-17 19:45:05,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:06,320 INFO L124 PetriNetUnfolderBase]: 6468/12216 cut-off events. [2025-03-17 19:45:06,320 INFO L125 PetriNetUnfolderBase]: For 103/103 co-relation queries the response was YES. [2025-03-17 19:45:06,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21053 conditions, 12216 events. 6468/12216 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 102232 event pairs, 4546 based on Foata normal form. 0/10090 useless extension candidates. Maximal degree in co-relation 20996. Up to 8635 conditions per place. [2025-03-17 19:45:06,397 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 43 selfloop transitions, 13 changer transitions 0/105 dead transitions. [2025-03-17 19:45:06,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 105 transitions, 367 flow [2025-03-17 19:45:06,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:45:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:45:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 579 transitions. [2025-03-17 19:45:06,401 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5848484848484848 [2025-03-17 19:45:06,401 INFO L175 Difference]: Start difference. First operand has 93 places, 96 transitions, 219 flow. Second operand 10 states and 579 transitions. [2025-03-17 19:45:06,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 105 transitions, 367 flow [2025-03-17 19:45:06,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 105 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:45:06,403 INFO L231 Difference]: Finished difference. Result has 104 places, 105 transitions, 296 flow [2025-03-17 19:45:06,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=296, PETRI_PLACES=104, PETRI_TRANSITIONS=105} [2025-03-17 19:45:06,404 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 10 predicate places. [2025-03-17 19:45:06,404 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 105 transitions, 296 flow [2025-03-17 19:45:06,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 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) [2025-03-17 19:45:06,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:06,405 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:06,413 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 19:45:06,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:45:06,610 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:06,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:06,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2065639252, now seen corresponding path program 1 times [2025-03-17 19:45:06,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:06,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231855899] [2025-03-17 19:45:06,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:06,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:06,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:45:06,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:45:06,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:06,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:06,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:06,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:06,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231855899] [2025-03-17 19:45:06,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231855899] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:06,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:06,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:45:06,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202924442] [2025-03-17 19:45:06,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:06,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:45:06,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:06,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:45:06,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:45:06,704 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2025-03-17 19:45:06,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2025-03-17 19:45:06,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:06,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2025-03-17 19:45:06,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:07,758 INFO L124 PetriNetUnfolderBase]: 12043/21157 cut-off events. [2025-03-17 19:45:07,758 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2025-03-17 19:45:07,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37661 conditions, 21157 events. 12043/21157 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 963. Compared 180017 event pairs, 4081 based on Foata normal form. 532/18071 useless extension candidates. Maximal degree in co-relation 37625. Up to 7863 conditions per place. [2025-03-17 19:45:07,897 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 113 selfloop transitions, 5 changer transitions 0/162 dead transitions. [2025-03-17 19:45:07,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 162 transitions, 652 flow [2025-03-17 19:45:07,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:45:07,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:45:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2025-03-17 19:45:07,898 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.76010101010101 [2025-03-17 19:45:07,898 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 296 flow. Second operand 4 states and 301 transitions. [2025-03-17 19:45:07,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 162 transitions, 652 flow [2025-03-17 19:45:07,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 162 transitions, 622 flow, removed 11 selfloop flow, removed 3 redundant places. [2025-03-17 19:45:07,901 INFO L231 Difference]: Finished difference. Result has 106 places, 107 transitions, 300 flow [2025-03-17 19:45:07,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=300, PETRI_PLACES=106, PETRI_TRANSITIONS=107} [2025-03-17 19:45:07,902 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 12 predicate places. [2025-03-17 19:45:07,902 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 107 transitions, 300 flow [2025-03-17 19:45:07,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 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) [2025-03-17 19:45:07,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:07,903 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:07,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:45:07,903 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:07,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:07,904 INFO L85 PathProgramCache]: Analyzing trace with hash -389692011, now seen corresponding path program 1 times [2025-03-17 19:45:07,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:07,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723627086] [2025-03-17 19:45:07,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:07,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:07,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:45:07,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:45:07,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:07,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:08,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:08,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:08,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723627086] [2025-03-17 19:45:08,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723627086] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:08,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:08,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:45:08,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561570050] [2025-03-17 19:45:08,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:08,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:45:08,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:08,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:45:08,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:45:08,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 99 [2025-03-17 19:45:08,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 107 transitions, 300 flow. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 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) [2025-03-17 19:45:08,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:08,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 99 [2025-03-17 19:45:08,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:08,913 INFO L124 PetriNetUnfolderBase]: 9834/18810 cut-off events. [2025-03-17 19:45:08,913 INFO L125 PetriNetUnfolderBase]: For 3277/3721 co-relation queries the response was YES. [2025-03-17 19:45:08,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34546 conditions, 18810 events. 9834/18810 cut-off events. For 3277/3721 co-relation queries the response was YES. Maximal size of possible extension queue 836. Compared 168962 event pairs, 6575 based on Foata normal form. 489/16469 useless extension candidates. Maximal degree in co-relation 34512. Up to 10393 conditions per place. [2025-03-17 19:45:08,990 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 111 selfloop transitions, 5 changer transitions 0/166 dead transitions. [2025-03-17 19:45:08,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 166 transitions, 659 flow [2025-03-17 19:45:08,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:45:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:45:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 376 transitions. [2025-03-17 19:45:08,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7595959595959596 [2025-03-17 19:45:08,992 INFO L175 Difference]: Start difference. First operand has 106 places, 107 transitions, 300 flow. Second operand 5 states and 376 transitions. [2025-03-17 19:45:08,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 166 transitions, 659 flow [2025-03-17 19:45:09,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 166 transitions, 659 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:45:09,013 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 325 flow [2025-03-17 19:45:09,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=325, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2025-03-17 19:45:09,015 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 18 predicate places. [2025-03-17 19:45:09,016 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 325 flow [2025-03-17 19:45:09,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 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) [2025-03-17 19:45:09,016 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:09,016 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:09,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:45:09,017 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:09,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:09,017 INFO L85 PathProgramCache]: Analyzing trace with hash 821719015, now seen corresponding path program 1 times [2025-03-17 19:45:09,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:09,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741179723] [2025-03-17 19:45:09,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:09,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:09,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:45:09,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:45:09,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:09,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:09,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:09,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741179723] [2025-03-17 19:45:09,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741179723] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:09,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:09,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:45:09,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773994240] [2025-03-17 19:45:09,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:09,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:45:09,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:09,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:45:09,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:45:09,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2025-03-17 19:45:09,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 325 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:45:09,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:09,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2025-03-17 19:45:09,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:10,681 INFO L124 PetriNetUnfolderBase]: 17170/31572 cut-off events. [2025-03-17 19:45:10,681 INFO L125 PetriNetUnfolderBase]: For 9589/10191 co-relation queries the response was YES. [2025-03-17 19:45:10,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62190 conditions, 31572 events. 17170/31572 cut-off events. For 9589/10191 co-relation queries the response was YES. Maximal size of possible extension queue 1427. Compared 294559 event pairs, 6602 based on Foata normal form. 1030/27596 useless extension candidates. Maximal degree in co-relation 62153. Up to 12463 conditions per place. [2025-03-17 19:45:10,887 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 119 selfloop transitions, 5 changer transitions 0/168 dead transitions. [2025-03-17 19:45:10,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 168 transitions, 761 flow [2025-03-17 19:45:10,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:45:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:45:10,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 295 transitions. [2025-03-17 19:45:10,888 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7449494949494949 [2025-03-17 19:45:10,888 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 325 flow. Second operand 4 states and 295 transitions. [2025-03-17 19:45:10,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 168 transitions, 761 flow [2025-03-17 19:45:10,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 168 transitions, 756 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:45:10,908 INFO L231 Difference]: Finished difference. Result has 115 places, 111 transitions, 354 flow [2025-03-17 19:45:10,908 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=354, PETRI_PLACES=115, PETRI_TRANSITIONS=111} [2025-03-17 19:45:10,909 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 21 predicate places. [2025-03-17 19:45:10,909 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 111 transitions, 354 flow [2025-03-17 19:45:10,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:45:10,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:10,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:10,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:45:10,910 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:10,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:10,910 INFO L85 PathProgramCache]: Analyzing trace with hash -296513669, now seen corresponding path program 1 times [2025-03-17 19:45:10,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:10,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528009705] [2025-03-17 19:45:10,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:10,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:10,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:45:10,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:45:10,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:10,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528009705] [2025-03-17 19:45:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528009705] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:10,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:10,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:45:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860481696] [2025-03-17 19:45:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:10,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:45:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:10,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:45:10,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:45:10,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 99 [2025-03-17 19:45:10,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 111 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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) [2025-03-17 19:45:10,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:10,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 99 [2025-03-17 19:45:10,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:12,258 INFO L124 PetriNetUnfolderBase]: 9995/20032 cut-off events. [2025-03-17 19:45:12,258 INFO L125 PetriNetUnfolderBase]: For 8472/9413 co-relation queries the response was YES. [2025-03-17 19:45:12,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40177 conditions, 20032 events. 9995/20032 cut-off events. For 8472/9413 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 190401 event pairs, 7157 based on Foata normal form. 559/17863 useless extension candidates. Maximal degree in co-relation 40138. Up to 12796 conditions per place. [2025-03-17 19:45:12,380 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 92 selfloop transitions, 5 changer transitions 2/149 dead transitions. [2025-03-17 19:45:12,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 149 transitions, 645 flow [2025-03-17 19:45:12,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:45:12,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:45:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 357 transitions. [2025-03-17 19:45:12,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7212121212121212 [2025-03-17 19:45:12,382 INFO L175 Difference]: Start difference. First operand has 115 places, 111 transitions, 354 flow. Second operand 5 states and 357 transitions. [2025-03-17 19:45:12,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 149 transitions, 645 flow [2025-03-17 19:45:12,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 149 transitions, 645 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:45:12,403 INFO L231 Difference]: Finished difference. Result has 121 places, 113 transitions, 379 flow [2025-03-17 19:45:12,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=379, PETRI_PLACES=121, PETRI_TRANSITIONS=113} [2025-03-17 19:45:12,404 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 27 predicate places. [2025-03-17 19:45:12,404 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 113 transitions, 379 flow [2025-03-17 19:45:12,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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) [2025-03-17 19:45:12,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:12,404 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:12,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:45:12,404 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:12,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:12,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1753834711, now seen corresponding path program 1 times [2025-03-17 19:45:12,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:12,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009924421] [2025-03-17 19:45:12,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:12,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:12,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:45:12,413 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:45:12,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:12,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:12,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:12,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009924421] [2025-03-17 19:45:12,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009924421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:12,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:12,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:45:12,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349163039] [2025-03-17 19:45:12,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:12,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:45:12,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:12,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:45:12,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:45:12,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2025-03-17 19:45:12,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 113 transitions, 379 flow. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 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) [2025-03-17 19:45:12,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:12,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2025-03-17 19:45:12,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:14,138 INFO L124 PetriNetUnfolderBase]: 17130/31218 cut-off events. [2025-03-17 19:45:14,138 INFO L125 PetriNetUnfolderBase]: For 16704/18040 co-relation queries the response was YES. [2025-03-17 19:45:14,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67536 conditions, 31218 events. 17130/31218 cut-off events. For 16704/18040 co-relation queries the response was YES. Maximal size of possible extension queue 1548. Compared 289452 event pairs, 7186 based on Foata normal form. 1360/28680 useless extension candidates. Maximal degree in co-relation 67494. Up to 13023 conditions per place. [2025-03-17 19:45:14,372 INFO L140 encePairwiseOnDemand]: 91/99 looper letters, 129 selfloop transitions, 5 changer transitions 0/178 dead transitions. [2025-03-17 19:45:14,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 178 transitions, 909 flow [2025-03-17 19:45:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:45:14,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:45:14,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2025-03-17 19:45:14,373 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.73989898989899 [2025-03-17 19:45:14,373 INFO L175 Difference]: Start difference. First operand has 121 places, 113 transitions, 379 flow. Second operand 4 states and 293 transitions. [2025-03-17 19:45:14,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 178 transitions, 909 flow [2025-03-17 19:45:14,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 178 transitions, 904 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:45:14,442 INFO L231 Difference]: Finished difference. Result has 124 places, 115 transitions, 408 flow [2025-03-17 19:45:14,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=408, PETRI_PLACES=124, PETRI_TRANSITIONS=115} [2025-03-17 19:45:14,443 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 30 predicate places. [2025-03-17 19:45:14,443 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 115 transitions, 408 flow [2025-03-17 19:45:14,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 4 states have internal predecessors, (203), 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) [2025-03-17 19:45:14,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:14,443 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:14,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:45:14,443 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:14,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:14,444 INFO L85 PathProgramCache]: Analyzing trace with hash -824358877, now seen corresponding path program 1 times [2025-03-17 19:45:14,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:14,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264732535] [2025-03-17 19:45:14,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:14,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:14,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:45:14,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:45:14,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:14,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:14,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:14,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264732535] [2025-03-17 19:45:14,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264732535] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:45:14,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1779316516] [2025-03-17 19:45:14,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:14,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:45:14,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:45:14,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:45:14,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 19:45:14,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:45:14,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:45:14,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:14,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:14,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 19:45:14,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:45:14,755 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 19:45:14,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2025-03-17 19:45:14,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:14,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:45:14,867 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2025-03-17 19:45:14,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2025-03-17 19:45:14,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:14,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1779316516] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:45:14,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:45:14,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-17 19:45:14,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348117764] [2025-03-17 19:45:14,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:45:14,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 19:45:14,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:14,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 19:45:14,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:45:14,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 99 [2025-03-17 19:45:14,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 115 transitions, 408 flow. Second operand has 13 states, 13 states have (on average 52.38461538461539) internal successors, (681), 13 states have internal predecessors, (681), 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) [2025-03-17 19:45:14,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:14,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 99 [2025-03-17 19:45:14,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:18,857 INFO L124 PetriNetUnfolderBase]: 26221/52579 cut-off events. [2025-03-17 19:45:18,857 INFO L125 PetriNetUnfolderBase]: For 32399/34809 co-relation queries the response was YES. [2025-03-17 19:45:19,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115388 conditions, 52579 events. 26221/52579 cut-off events. For 32399/34809 co-relation queries the response was YES. Maximal size of possible extension queue 1751. Compared 553065 event pairs, 6544 based on Foata normal form. 1306/48647 useless extension candidates. Maximal degree in co-relation 115344. Up to 12565 conditions per place. [2025-03-17 19:45:19,230 INFO L140 encePairwiseOnDemand]: 86/99 looper letters, 206 selfloop transitions, 19 changer transitions 1/274 dead transitions. [2025-03-17 19:45:19,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 274 transitions, 1408 flow [2025-03-17 19:45:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:45:19,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:45:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 704 transitions. [2025-03-17 19:45:19,232 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2025-03-17 19:45:19,232 INFO L175 Difference]: Start difference. First operand has 124 places, 115 transitions, 408 flow. Second operand 10 states and 704 transitions. [2025-03-17 19:45:19,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 274 transitions, 1408 flow [2025-03-17 19:45:19,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 274 transitions, 1408 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:45:19,386 INFO L231 Difference]: Finished difference. Result has 136 places, 124 transitions, 521 flow [2025-03-17 19:45:19,386 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=521, PETRI_PLACES=136, PETRI_TRANSITIONS=124} [2025-03-17 19:45:19,386 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 42 predicate places. [2025-03-17 19:45:19,386 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 124 transitions, 521 flow [2025-03-17 19:45:19,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 52.38461538461539) internal successors, (681), 13 states have internal predecessors, (681), 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) [2025-03-17 19:45:19,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:19,387 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:19,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 19:45:19,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-03-17 19:45:19,587 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:19,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:19,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1465699476, now seen corresponding path program 1 times [2025-03-17 19:45:19,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:19,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379772988] [2025-03-17 19:45:19,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:19,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:19,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:45:19,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:45:19,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:19,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:19,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:19,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:19,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379772988] [2025-03-17 19:45:19,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379772988] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:19,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:19,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:45:19,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827415146] [2025-03-17 19:45:19,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:19,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:45:19,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:19,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:45:19,654 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:45:19,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 99 [2025-03-17 19:45:19,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 124 transitions, 521 flow. Second operand has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 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) [2025-03-17 19:45:19,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:19,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 99 [2025-03-17 19:45:19,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:22,939 INFO L124 PetriNetUnfolderBase]: 23050/46613 cut-off events. [2025-03-17 19:45:22,940 INFO L125 PetriNetUnfolderBase]: For 50352/53331 co-relation queries the response was YES. [2025-03-17 19:45:23,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110887 conditions, 46613 events. 23050/46613 cut-off events. For 50352/53331 co-relation queries the response was YES. Maximal size of possible extension queue 1716. Compared 492929 event pairs, 17172 based on Foata normal form. 1456/43393 useless extension candidates. Maximal degree in co-relation 110838. Up to 30328 conditions per place. [2025-03-17 19:45:23,322 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 66 selfloop transitions, 2 changer transitions 22/141 dead transitions. [2025-03-17 19:45:23,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 141 transitions, 759 flow [2025-03-17 19:45:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:45:23,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:45:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 338 transitions. [2025-03-17 19:45:23,323 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6828282828282828 [2025-03-17 19:45:23,323 INFO L175 Difference]: Start difference. First operand has 136 places, 124 transitions, 521 flow. Second operand 5 states and 338 transitions. [2025-03-17 19:45:23,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 141 transitions, 759 flow [2025-03-17 19:45:23,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 141 transitions, 739 flow, removed 4 selfloop flow, removed 4 redundant places. [2025-03-17 19:45:23,513 INFO L231 Difference]: Finished difference. Result has 138 places, 119 transitions, 484 flow [2025-03-17 19:45:23,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=484, PETRI_PLACES=138, PETRI_TRANSITIONS=119} [2025-03-17 19:45:23,513 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 44 predicate places. [2025-03-17 19:45:23,513 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 119 transitions, 484 flow [2025-03-17 19:45:23,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 5 states have internal predecessors, (279), 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) [2025-03-17 19:45:23,514 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:23,514 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:23,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-17 19:45:23,514 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:23,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:23,514 INFO L85 PathProgramCache]: Analyzing trace with hash 214648458, now seen corresponding path program 1 times [2025-03-17 19:45:23,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:23,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989409894] [2025-03-17 19:45:23,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:23,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:45:23,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:45:23,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:23,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:23,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:23,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:23,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989409894] [2025-03-17 19:45:23,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989409894] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:45:23,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44939478] [2025-03-17 19:45:23,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:23,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:45:23,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:45:23,693 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:45:23,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 19:45:23,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:45:23,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:45:23,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:23,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:23,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 19:45:23,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:45:23,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 19:45:23,793 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-17 19:45:23,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:23,799 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:45:23,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2025-03-17 19:45:23,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2025-03-17 19:45:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:23,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44939478] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:45:23,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:45:23,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-17 19:45:23,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061059116] [2025-03-17 19:45:23,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:45:23,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 19:45:23,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:23,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 19:45:23,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:45:23,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 99 [2025-03-17 19:45:23,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 119 transitions, 484 flow. Second operand has 13 states, 13 states have (on average 50.53846153846154) internal successors, (657), 13 states have internal predecessors, (657), 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) [2025-03-17 19:45:23,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:23,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 99 [2025-03-17 19:45:23,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:28,114 INFO L124 PetriNetUnfolderBase]: 31729/57403 cut-off events. [2025-03-17 19:45:28,114 INFO L125 PetriNetUnfolderBase]: For 56738/59796 co-relation queries the response was YES. [2025-03-17 19:45:28,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141009 conditions, 57403 events. 31729/57403 cut-off events. For 56738/59796 co-relation queries the response was YES. Maximal size of possible extension queue 1896. Compared 555548 event pairs, 8333 based on Foata normal form. 1992/54560 useless extension candidates. Maximal degree in co-relation 140970. Up to 16684 conditions per place. [2025-03-17 19:45:28,845 INFO L140 encePairwiseOnDemand]: 86/99 looper letters, 186 selfloop transitions, 18 changer transitions 0/249 dead transitions. [2025-03-17 19:45:28,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 249 transitions, 1364 flow [2025-03-17 19:45:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:45:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:45:28,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 660 transitions. [2025-03-17 19:45:28,847 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-03-17 19:45:28,847 INFO L175 Difference]: Start difference. First operand has 138 places, 119 transitions, 484 flow. Second operand 10 states and 660 transitions. [2025-03-17 19:45:28,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 249 transitions, 1364 flow [2025-03-17 19:45:29,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 249 transitions, 1296 flow, removed 32 selfloop flow, removed 7 redundant places. [2025-03-17 19:45:29,038 INFO L231 Difference]: Finished difference. Result has 136 places, 121 transitions, 526 flow [2025-03-17 19:45:29,038 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=458, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=526, PETRI_PLACES=136, PETRI_TRANSITIONS=121} [2025-03-17 19:45:29,039 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 42 predicate places. [2025-03-17 19:45:29,039 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 121 transitions, 526 flow [2025-03-17 19:45:29,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 50.53846153846154) internal successors, (657), 13 states have internal predecessors, (657), 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) [2025-03-17 19:45:29,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:29,039 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:29,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 19:45:29,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:45:29,240 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:29,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:29,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1399544183, now seen corresponding path program 1 times [2025-03-17 19:45:29,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:29,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557484208] [2025-03-17 19:45:29,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:29,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:29,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:45:29,253 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:45:29,253 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:29,253 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:29,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:29,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557484208] [2025-03-17 19:45:29,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557484208] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:45:29,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195234409] [2025-03-17 19:45:29,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:29,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:45:29,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:45:29,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:45:29,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 19:45:29,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:45:29,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:45:29,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:29,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:29,458 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-03-17 19:45:29,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:45:29,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-17 19:45:29,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2025-03-17 19:45:29,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:29,520 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:45:29,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2025-03-17 19:45:29,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2025-03-17 19:45:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:45:29,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195234409] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:45:29,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:45:29,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-17 19:45:29,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085607628] [2025-03-17 19:45:29,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:45:29,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 19:45:29,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:29,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 19:45:29,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:45:29,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 99 [2025-03-17 19:45:29,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 121 transitions, 526 flow. Second operand has 13 states, 13 states have (on average 52.69230769230769) internal successors, (685), 13 states have internal predecessors, (685), 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) [2025-03-17 19:45:29,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:29,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 99 [2025-03-17 19:45:29,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:45:36,619 INFO L124 PetriNetUnfolderBase]: 49450/95314 cut-off events. [2025-03-17 19:45:36,619 INFO L125 PetriNetUnfolderBase]: For 115387/120141 co-relation queries the response was YES. [2025-03-17 19:45:36,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230950 conditions, 95314 events. 49450/95314 cut-off events. For 115387/120141 co-relation queries the response was YES. Maximal size of possible extension queue 2651. Compared 1021780 event pairs, 13412 based on Foata normal form. 3180/89805 useless extension candidates. Maximal degree in co-relation 230904. Up to 24844 conditions per place. [2025-03-17 19:45:37,402 INFO L140 encePairwiseOnDemand]: 86/99 looper letters, 212 selfloop transitions, 18 changer transitions 0/281 dead transitions. [2025-03-17 19:45:37,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 281 transitions, 1800 flow [2025-03-17 19:45:37,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:45:37,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:45:37,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 670 transitions. [2025-03-17 19:45:37,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6767676767676768 [2025-03-17 19:45:37,404 INFO L175 Difference]: Start difference. First operand has 136 places, 121 transitions, 526 flow. Second operand 10 states and 670 transitions. [2025-03-17 19:45:37,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 281 transitions, 1800 flow [2025-03-17 19:45:37,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 281 transitions, 1728 flow, removed 1 selfloop flow, removed 7 redundant places. [2025-03-17 19:45:37,868 INFO L231 Difference]: Finished difference. Result has 141 places, 130 transitions, 609 flow [2025-03-17 19:45:37,868 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=609, PETRI_PLACES=141, PETRI_TRANSITIONS=130} [2025-03-17 19:45:37,869 INFO L279 CegarLoopForPetriNet]: 94 programPoint places, 47 predicate places. [2025-03-17 19:45:37,869 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 130 transitions, 609 flow [2025-03-17 19:45:37,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 52.69230769230769) internal successors, (685), 13 states have internal predecessors, (685), 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) [2025-03-17 19:45:37,869 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:45:37,869 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:45:37,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 19:45:38,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:45:38,070 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2025-03-17 19:45:38,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:45:38,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1935831770, now seen corresponding path program 1 times [2025-03-17 19:45:38,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:45:38,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955276332] [2025-03-17 19:45:38,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:45:38,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:45:38,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:45:38,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:45:38,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:45:38,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:45:38,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:45:38,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:45:38,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955276332] [2025-03-17 19:45:38,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955276332] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:45:38,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:45:38,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:45:38,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623845876] [2025-03-17 19:45:38,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:45:38,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:45:38,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:45:38,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:45:38,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:45:38,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 99 [2025-03-17 19:45:38,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 130 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:45:38,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:45:38,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 99 [2025-03-17 19:45:38,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand