./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 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.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 e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:28:52,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:28:52,751 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:28:52,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:28:52,757 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:28:52,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:28:52,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:28:52,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:28:52,780 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:28:52,781 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:28:52,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:28:52,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:28:52,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:28:52,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:28:52,782 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:28:52,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:28:52,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:28:52,783 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:28:52,784 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:28:52,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:28:52,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:28:52,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:28:52,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:28:52,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:28:52,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:28:52,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:28:52,785 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 -> e4a4a131c0d4df2db1bf018027395318bc112945cbb20d5c862562c48934e5a1 [2025-03-04 15:28:52,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:28:52,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:28:52,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:28:52,987 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:28:52,987 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:28:52,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2025-03-04 15:28:54,057 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6713b068e/4775c6b701b444b881e48644e327e44f/FLAG7133b2913 [2025-03-04 15:28:54,287 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:28:54,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-array-sum.wvr.c [2025-03-04 15:28:54,299 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6713b068e/4775c6b701b444b881e48644e327e44f/FLAG7133b2913 [2025-03-04 15:28:54,631 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6713b068e/4775c6b701b444b881e48644e327e44f [2025-03-04 15:28:54,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:28:54,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:28:54,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:28:54,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:28:54,638 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:28:54,638 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,639 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d49933d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54, skipping insertion in model container [2025-03-04 15:28:54,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:28:54,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:28:54,788 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:28:54,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:28:54,816 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:28:54,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54 WrapperNode [2025-03-04 15:28:54,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:28:54,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:28:54,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:28:54,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:28:54,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,856 INFO L138 Inliner]: procedures = 22, calls = 32, calls flagged for inlining = 17, calls inlined = 29, statements flattened = 345 [2025-03-04 15:28:54,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:28:54,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:28:54,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:28:54,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:28:54,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,885 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2025-03-04 15:28:54,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:28:54,915 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:28:54,915 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:28:54,915 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:28:54,916 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (1/1) ... [2025-03-04 15:28:54,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:28:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:28:54,946 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) [2025-03-04 15:28:54,948 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 [2025-03-04 15:28:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:28:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 15:28:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 15:28:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 15:28:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 15:28:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-04 15:28:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-04 15:28:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:28:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:28:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:28:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:28:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:28:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:28:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:28:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:28:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:28:54,970 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:28:55,046 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:28:55,048 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:28:55,478 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:28:55,479 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:28:55,685 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:28:55,687 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:28:55,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:28:55 BoogieIcfgContainer [2025-03-04 15:28:55,688 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:28:55,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:28:55,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:28:55,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:28:55,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:28:54" (1/3) ... [2025-03-04 15:28:55,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162d984d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:28:55, skipping insertion in model container [2025-03-04 15:28:55,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:28:54" (2/3) ... [2025-03-04 15:28:55,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162d984d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:28:55, skipping insertion in model container [2025-03-04 15:28:55,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:28:55" (3/3) ... [2025-03-04 15:28:55,695 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-array-sum.wvr.c [2025-03-04 15:28:55,708 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:28:55,709 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-array-sum.wvr.c that has 4 procedures, 143 locations, 1 initial locations, 5 loop locations, and 46 error locations. [2025-03-04 15:28:55,710 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:28:55,785 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-04 15:28:55,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 152 places, 159 transitions, 339 flow [2025-03-04 15:28:55,851 INFO L124 PetriNetUnfolderBase]: 17/156 cut-off events. [2025-03-04 15:28:55,855 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 15:28:55,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 156 events. 17/156 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 644 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2025-03-04 15:28:55,862 INFO L82 GeneralOperation]: Start removeDead. Operand has 152 places, 159 transitions, 339 flow [2025-03-04 15:28:55,868 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 154 transitions, 323 flow [2025-03-04 15:28:55,874 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:28:55,881 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;@2c17db37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:28:55,881 INFO L334 AbstractCegarLoop]: Starting to check reachability of 91 error locations. [2025-03-04 15:28:55,885 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:28:55,886 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-04 15:28:55,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:28:55,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:28:55,887 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 15:28:55,887 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2025-03-04 15:28:55,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:28:55,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1038641, now seen corresponding path program 1 times [2025-03-04 15:28:55,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:28:55,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113669180] [2025-03-04 15:28:55,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:28:55,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:28:55,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:28:56,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:28:56,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:28:56,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:28:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:28:56,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:28:56,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113669180] [2025-03-04 15:28:56,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113669180] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:28:56,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:28:56,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:28:56,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199501375] [2025-03-04 15:28:56,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:28:56,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:28:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:28:56,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:28:56,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:28:56,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2025-03-04 15:28:56,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 154 transitions, 323 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2025-03-04 15:28:56,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:28:56,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2025-03-04 15:28:56,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:28:58,917 INFO L124 PetriNetUnfolderBase]: 20069/40297 cut-off events. [2025-03-04 15:28:58,917 INFO L125 PetriNetUnfolderBase]: For 770/770 co-relation queries the response was YES. [2025-03-04 15:28:58,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67130 conditions, 40297 events. 20069/40297 cut-off events. For 770/770 co-relation queries the response was YES. Maximal size of possible extension queue 1299. Compared 407353 event pairs, 13618 based on Foata normal form. 2/33021 useless extension candidates. Maximal degree in co-relation 65022. Up to 26250 conditions per place. [2025-03-04 15:28:59,248 INFO L140 encePairwiseOnDemand]: 148/159 looper letters, 64 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2025-03-04 15:28:59,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 160 transitions, 477 flow [2025-03-04 15:28:59,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:28:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:28:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2025-03-04 15:28:59,265 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6965408805031447 [2025-03-04 15:28:59,266 INFO L175 Difference]: Start difference. First operand has 147 places, 154 transitions, 323 flow. Second operand 4 states and 443 transitions. [2025-03-04 15:28:59,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 160 transitions, 477 flow [2025-03-04 15:28:59,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 160 transitions, 468 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 15:28:59,289 INFO L231 Difference]: Finished difference. Result has 148 places, 160 transitions, 374 flow [2025-03-04 15:28:59,290 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=374, PETRI_PLACES=148, PETRI_TRANSITIONS=160} [2025-03-04 15:28:59,294 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2025-03-04 15:28:59,294 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 160 transitions, 374 flow [2025-03-04 15:28:59,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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) [2025-03-04 15:28:59,294 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:28:59,295 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-04 15:28:59,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:28:59,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2025-03-04 15:28:59,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:28:59,297 INFO L85 PathProgramCache]: Analyzing trace with hash 878256308, now seen corresponding path program 1 times [2025-03-04 15:28:59,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:28:59,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900326756] [2025-03-04 15:28:59,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:28:59,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:28:59,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:28:59,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:28:59,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:28:59,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:28:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:28:59,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:28:59,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900326756] [2025-03-04 15:28:59,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900326756] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:28:59,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576374204] [2025-03-04 15:28:59,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:28:59,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:28:59,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:28:59,420 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) [2025-03-04 15:28:59,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 15:28:59,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:28:59,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:28:59,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:28:59,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:28:59,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:28:59,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:28:59,517 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:28:59,518 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:28:59,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576374204] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:28:59,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:28:59,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-04 15:28:59,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96337694] [2025-03-04 15:28:59,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:28:59,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:28:59,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:28:59,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:28:59,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:28:59,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2025-03-04 15:28:59,535 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 160 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2025-03-04 15:28:59,535 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:28:59,535 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2025-03-04 15:28:59,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:29:01,622 INFO L124 PetriNetUnfolderBase]: 20069/40295 cut-off events. [2025-03-04 15:29:01,623 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2025-03-04 15:29:01,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66921 conditions, 40295 events. 20069/40295 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 407566 event pairs, 13618 based on Foata normal form. 2/33022 useless extension candidates. Maximal degree in co-relation 66871. Up to 26240 conditions per place. [2025-03-04 15:29:01,857 INFO L140 encePairwiseOnDemand]: 150/159 looper letters, 57 selfloop transitions, 12 changer transitions 0/158 dead transitions. [2025-03-04 15:29:01,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 158 transitions, 504 flow [2025-03-04 15:29:01,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:29:01,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:29:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2025-03-04 15:29:01,860 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6530398322851153 [2025-03-04 15:29:01,860 INFO L175 Difference]: Start difference. First operand has 148 places, 160 transitions, 374 flow. Second operand 6 states and 623 transitions. [2025-03-04 15:29:01,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 158 transitions, 504 flow [2025-03-04 15:29:01,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 158 transitions, 504 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:29:01,862 INFO L231 Difference]: Finished difference. Result has 151 places, 158 transitions, 390 flow [2025-03-04 15:29:01,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=390, PETRI_PLACES=151, PETRI_TRANSITIONS=158} [2025-03-04 15:29:01,863 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 4 predicate places. [2025-03-04 15:29:01,863 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 158 transitions, 390 flow [2025-03-04 15:29:01,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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) [2025-03-04 15:29:01,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:29:01,864 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-04 15:29:01,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 15:29:02,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:29:02,068 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2025-03-04 15:29:02,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:29:02,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1456142646, now seen corresponding path program 1 times [2025-03-04 15:29:02,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:29:02,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782000259] [2025-03-04 15:29:02,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:29:02,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:29:02,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:29:02,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:29:02,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:29:02,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:29:02,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:29:02,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782000259] [2025-03-04 15:29:02,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782000259] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:29:02,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428547731] [2025-03-04 15:29:02,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:29:02,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:29:02,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:29:02,172 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) [2025-03-04 15:29:02,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 15:29:02,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:29:02,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:29:02,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:29:02,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:02,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:29:02,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:29:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:29:02,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:29:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:29:02,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428547731] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:29:02,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:29:02,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 15:29:02,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522074599] [2025-03-04 15:29:02,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:29:02,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 15:29:02,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:29:02,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 15:29:02,303 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 15:29:02,329 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2025-03-04 15:29:02,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 158 transitions, 390 flow. Second operand has 12 states, 12 states have (on average 93.08333333333333) internal successors, (1117), 12 states have internal predecessors, (1117), 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) [2025-03-04 15:29:02,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:29:02,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2025-03-04 15:29:02,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:29:04,261 INFO L124 PetriNetUnfolderBase]: 20075/40319 cut-off events. [2025-03-04 15:29:04,262 INFO L125 PetriNetUnfolderBase]: For 247/247 co-relation queries the response was YES. [2025-03-04 15:29:04,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67015 conditions, 40319 events. 20075/40319 cut-off events. For 247/247 co-relation queries the response was YES. Maximal size of possible extension queue 1299. Compared 407673 event pairs, 13618 based on Foata normal form. 6/33049 useless extension candidates. Maximal degree in co-relation 66873. Up to 26251 conditions per place. [2025-03-04 15:29:04,487 INFO L140 encePairwiseOnDemand]: 150/159 looper letters, 62 selfloop transitions, 25 changer transitions 0/176 dead transitions. [2025-03-04 15:29:04,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 176 transitions, 678 flow [2025-03-04 15:29:04,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 15:29:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 15:29:04,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1013 transitions. [2025-03-04 15:29:04,489 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6371069182389937 [2025-03-04 15:29:04,489 INFO L175 Difference]: Start difference. First operand has 151 places, 158 transitions, 390 flow. Second operand 10 states and 1013 transitions. [2025-03-04 15:29:04,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 176 transitions, 678 flow [2025-03-04 15:29:04,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 176 transitions, 620 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-03-04 15:29:04,494 INFO L231 Difference]: Finished difference. Result has 158 places, 176 transitions, 530 flow [2025-03-04 15:29:04,496 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=530, PETRI_PLACES=158, PETRI_TRANSITIONS=176} [2025-03-04 15:29:04,497 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2025-03-04 15:29:04,497 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 176 transitions, 530 flow [2025-03-04 15:29:04,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 93.08333333333333) internal successors, (1117), 12 states have internal predecessors, (1117), 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) [2025-03-04 15:29:04,498 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:29:04,498 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:29:04,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 15:29:04,698 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,SelfDestructingSolverStorable2 [2025-03-04 15:29:04,699 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2025-03-04 15:29:04,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:29:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash -593510335, now seen corresponding path program 1 times [2025-03-04 15:29:04,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:29:04,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37358835] [2025-03-04 15:29:04,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:29:04,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:29:04,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:29:04,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:29:04,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:29:04,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:29:04,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:29:04,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37358835] [2025-03-04 15:29:04,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37358835] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:29:04,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:29:04,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:29:04,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900727385] [2025-03-04 15:29:04,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:29:04,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:29:04,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:29:04,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:29:04,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:29:04,809 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 159 [2025-03-04 15:29:04,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 176 transitions, 530 flow. Second operand has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2025-03-04 15:29:04,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:29:04,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 159 [2025-03-04 15:29:04,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:29:08,774 INFO L124 PetriNetUnfolderBase]: 44391/76799 cut-off events. [2025-03-04 15:29:08,775 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2025-03-04 15:29:08,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136198 conditions, 76799 events. 44391/76799 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 2317. Compared 725682 event pairs, 12918 based on Foata normal form. 2184/66635 useless extension candidates. Maximal degree in co-relation 136131. Up to 26716 conditions per place. [2025-03-04 15:29:09,211 INFO L140 encePairwiseOnDemand]: 144/159 looper letters, 167 selfloop transitions, 10 changer transitions 0/256 dead transitions. [2025-03-04 15:29:09,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 256 transitions, 1050 flow [2025-03-04 15:29:09,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:29:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:29:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 495 transitions. [2025-03-04 15:29:09,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7783018867924528 [2025-03-04 15:29:09,213 INFO L175 Difference]: Start difference. First operand has 158 places, 176 transitions, 530 flow. Second operand 4 states and 495 transitions. [2025-03-04 15:29:09,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 256 transitions, 1050 flow [2025-03-04 15:29:09,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 256 transitions, 1026 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-03-04 15:29:09,216 INFO L231 Difference]: Finished difference. Result has 160 places, 180 transitions, 572 flow [2025-03-04 15:29:09,217 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=572, PETRI_PLACES=160, PETRI_TRANSITIONS=180} [2025-03-04 15:29:09,217 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 13 predicate places. [2025-03-04 15:29:09,217 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 180 transitions, 572 flow [2025-03-04 15:29:09,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.0) internal successors, (344), 4 states have internal predecessors, (344), 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) [2025-03-04 15:29:09,217 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:29:09,218 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:29:09,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 15:29:09,218 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2025-03-04 15:29:09,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:29:09,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1218950183, now seen corresponding path program 1 times [2025-03-04 15:29:09,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:29:09,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788838338] [2025-03-04 15:29:09,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:29:09,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:29:09,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:29:09,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:29:09,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:29:09,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:29:09,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:29:09,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788838338] [2025-03-04 15:29:09,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788838338] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:29:09,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:29:09,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:29:09,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197298171] [2025-03-04 15:29:09,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:29:09,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:29:09,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:29:09,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:29:09,313 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:29:09,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 159 [2025-03-04 15:29:09,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 180 transitions, 572 flow. Second operand has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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) [2025-03-04 15:29:09,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:29:09,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 159 [2025-03-04 15:29:09,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:29:12,282 INFO L124 PetriNetUnfolderBase]: 25897/53088 cut-off events. [2025-03-04 15:29:12,282 INFO L125 PetriNetUnfolderBase]: For 10357/12029 co-relation queries the response was YES. [2025-03-04 15:29:12,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95539 conditions, 53088 events. 25897/53088 cut-off events. For 10357/12029 co-relation queries the response was YES. Maximal size of possible extension queue 1713. Compared 567919 event pairs, 18046 based on Foata normal form. 841/44886 useless extension candidates. Maximal degree in co-relation 95472. Up to 34044 conditions per place. [2025-03-04 15:29:12,614 INFO L140 encePairwiseOnDemand]: 153/159 looper letters, 80 selfloop transitions, 7 changer transitions 1/179 dead transitions. [2025-03-04 15:29:12,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 179 transitions, 743 flow [2025-03-04 15:29:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:29:12,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:29:12,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 453 transitions. [2025-03-04 15:29:12,615 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7122641509433962 [2025-03-04 15:29:12,615 INFO L175 Difference]: Start difference. First operand has 160 places, 180 transitions, 572 flow. Second operand 4 states and 453 transitions. [2025-03-04 15:29:12,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 179 transitions, 743 flow [2025-03-04 15:29:12,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 179 transitions, 743 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:29:12,692 INFO L231 Difference]: Finished difference. Result has 164 places, 178 transitions, 579 flow [2025-03-04 15:29:12,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=567, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=579, PETRI_PLACES=164, PETRI_TRANSITIONS=178} [2025-03-04 15:29:12,693 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 17 predicate places. [2025-03-04 15:29:12,693 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 178 transitions, 579 flow [2025-03-04 15:29:12,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.5) internal successors, (390), 4 states have internal predecessors, (390), 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) [2025-03-04 15:29:12,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:29:12,693 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:29:12,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:29:12,694 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2025-03-04 15:29:12,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:29:12,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1502128838, now seen corresponding path program 1 times [2025-03-04 15:29:12,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:29:12,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837121405] [2025-03-04 15:29:12,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:29:12,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:29:12,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:29:12,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:29:12,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:29:12,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:13,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:29:13,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:29:13,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837121405] [2025-03-04 15:29:13,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837121405] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:29:13,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957415049] [2025-03-04 15:29:13,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:29:13,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:29:13,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:29:13,134 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) [2025-03-04 15:29:13,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 15:29:13,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-04 15:29:13,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-04 15:29:13,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:29:13,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:13,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-04 15:29:13,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:29:13,226 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 [2025-03-04 15:29:13,272 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 [2025-03-04 15:29:13,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:29:13,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:29:13,350 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 [2025-03-04 15:29:13,355 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 [2025-03-04 15:29:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 15:29:13,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957415049] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:29:13,358 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:29:13,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2025-03-04 15:29:13,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292525340] [2025-03-04 15:29:13,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:29:13,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-04 15:29:13,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:29:13,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-04 15:29:13,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-03-04 15:29:13,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 159 [2025-03-04 15:29:13,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 178 transitions, 579 flow. Second operand has 15 states, 15 states have (on average 91.66666666666667) internal successors, (1375), 15 states have internal predecessors, (1375), 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) [2025-03-04 15:29:13,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:29:13,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 159 [2025-03-04 15:29:13,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:29:21,413 INFO L124 PetriNetUnfolderBase]: 66531/122985 cut-off events. [2025-03-04 15:29:21,413 INFO L125 PetriNetUnfolderBase]: For 27823/28527 co-relation queries the response was YES. [2025-03-04 15:29:21,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239821 conditions, 122985 events. 66531/122985 cut-off events. For 27823/28527 co-relation queries the response was YES. Maximal size of possible extension queue 2763. Compared 1272267 event pairs, 11916 based on Foata normal form. 704/110251 useless extension candidates. Maximal degree in co-relation 239751. Up to 33566 conditions per place. [2025-03-04 15:29:22,389 INFO L140 encePairwiseOnDemand]: 141/159 looper letters, 234 selfloop transitions, 26 changer transitions 0/347 dead transitions. [2025-03-04 15:29:22,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 347 transitions, 1491 flow [2025-03-04 15:29:22,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 15:29:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 15:29:22,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1139 transitions. [2025-03-04 15:29:22,392 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7163522012578616 [2025-03-04 15:29:22,392 INFO L175 Difference]: Start difference. First operand has 164 places, 178 transitions, 579 flow. Second operand 10 states and 1139 transitions. [2025-03-04 15:29:22,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 347 transitions, 1491 flow [2025-03-04 15:29:23,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 347 transitions, 1468 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-04 15:29:23,609 INFO L231 Difference]: Finished difference. Result has 171 places, 187 transitions, 690 flow [2025-03-04 15:29:23,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=159, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=690, PETRI_PLACES=171, PETRI_TRANSITIONS=187} [2025-03-04 15:29:23,610 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 24 predicate places. [2025-03-04 15:29:23,610 INFO L471 AbstractCegarLoop]: Abstraction has has 171 places, 187 transitions, 690 flow [2025-03-04 15:29:23,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 91.66666666666667) internal successors, (1375), 15 states have internal predecessors, (1375), 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) [2025-03-04 15:29:23,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:29:23,611 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-03-04 15:29:23,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 15:29:23,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:29:23,812 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (and 88 more)] === [2025-03-04 15:29:23,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:29:23,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1388997095, now seen corresponding path program 2 times [2025-03-04 15:29:23,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:29:23,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398845092] [2025-03-04 15:29:23,812 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:29:23,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:29:23,822 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-04 15:29:23,828 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-04 15:29:23,828 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:29:23,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 15:29:23,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:29:23,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398845092] [2025-03-04 15:29:23,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398845092] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:29:23,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993895847] [2025-03-04 15:29:23,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:29:23,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:29:23,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:29:23,865 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) [2025-03-04 15:29:23,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 15:29:23,909 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-04 15:29:23,915 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-04 15:29:23,915 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:29:23,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:29:23,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-04 15:29:23,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:29:23,939 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 15:29:23,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:29:23,956 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-04 15:29:23,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993895847] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:29:23,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:29:23,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-03-04 15:29:23,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926114302] [2025-03-04 15:29:23,957 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:29:23,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:29:23,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:29:23,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:29:23,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:29:23,964 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 159 [2025-03-04 15:29:23,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 187 transitions, 690 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2025-03-04 15:29:23,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:29:23,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 159 [2025-03-04 15:29:23,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand