./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-match-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-match-trans.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58a3707e98508adde0e15b9d8e43fa1e77573e5478a67cbc9ef6d2cbcb9307e7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:49:42,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:49:42,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:49:42,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:49:42,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:49:42,362 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:49:42,363 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:49:42,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:49:42,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:49:42,363 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:49:42,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:49:42,363 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:49:42,363 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:49:42,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:49:42,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:49:42,364 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:49:42,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:49:42,365 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:49:42,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:49:42,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:49:42,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:49:42,367 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:49:42,367 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:49:42,367 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58a3707e98508adde0e15b9d8e43fa1e77573e5478a67cbc9ef6d2cbcb9307e7 [2025-01-10 06:49:42,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:49:42,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:49:42,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:49:42,601 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:49:42,602 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:49:42,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2025-01-10 06:49:43,765 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97afb5c58/167fd6ad9c8a438c967bdd8d9da96f13/FLAG600f52bea [2025-01-10 06:49:43,999 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:49:44,000 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-match-trans.wvr.c [2025-01-10 06:49:44,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97afb5c58/167fd6ad9c8a438c967bdd8d9da96f13/FLAG600f52bea [2025-01-10 06:49:44,351 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/97afb5c58/167fd6ad9c8a438c967bdd8d9da96f13 [2025-01-10 06:49:44,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:49:44,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:49:44,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:49:44,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:49:44,364 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:49:44,364 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,365 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@282bd43a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44, skipping insertion in model container [2025-01-10 06:49:44,365 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,379 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:49:44,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:49:44,531 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:49:44,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:49:44,571 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:49:44,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44 WrapperNode [2025-01-10 06:49:44,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:49:44,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:49:44,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:49:44,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:49:44,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,611 INFO L138 Inliner]: procedures = 22, calls = 19, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 281 [2025-01-10 06:49:44,614 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:49:44,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:49:44,615 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:49:44,615 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:49:44,622 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,648 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-10 06:49:44,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,656 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,671 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:49:44,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:49:44,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:49:44,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:49:44,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (1/1) ... [2025-01-10 06:49:44,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:49:44,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:49:44,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-10 06:49:44,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-10 06:49:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:49:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-01-10 06:49:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-01-10 06:49:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-01-10 06:49:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-01-10 06:49:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-01-10 06:49:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-01-10 06:49:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:49:44,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:49:44,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:49:44,730 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:49:44,824 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:49:44,826 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:49:45,211 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:49:45,211 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:49:45,461 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:49:45,461 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 06:49:45,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:49:45 BoogieIcfgContainer [2025-01-10 06:49:45,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:49:45,463 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:49:45,463 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:49:45,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:49:45,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:49:44" (1/3) ... [2025-01-10 06:49:45,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139f2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:49:45, skipping insertion in model container [2025-01-10 06:49:45,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:49:44" (2/3) ... [2025-01-10 06:49:45,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139f2b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:49:45, skipping insertion in model container [2025-01-10 06:49:45,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:49:45" (3/3) ... [2025-01-10 06:49:45,473 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-match-trans.wvr.c [2025-01-10 06:49:45,488 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:49:45,490 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-match-trans.wvr.c that has 4 procedures, 114 locations, 1 initial locations, 0 loop locations, and 36 error locations. [2025-01-10 06:49:45,490 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:49:45,563 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-10 06:49:45,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 125 transitions, 271 flow [2025-01-10 06:49:45,646 INFO L124 PetriNetUnfolderBase]: 12/122 cut-off events. [2025-01-10 06:49:45,650 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-10 06:49:45,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 122 events. 12/122 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 495 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2025-01-10 06:49:45,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 125 transitions, 271 flow [2025-01-10 06:49:45,664 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 120 transitions, 255 flow [2025-01-10 06:49:45,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:49:45,687 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;@861d0cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:49:45,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2025-01-10 06:49:45,692 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:49:45,692 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-01-10 06:49:45,692 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:49:45,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:45,693 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-01-10 06:49:45,693 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:49:45,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:45,698 INFO L85 PathProgramCache]: Analyzing trace with hash 823388519, now seen corresponding path program 1 times [2025-01-10 06:49:45,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:45,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77723656] [2025-01-10 06:49:45,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:45,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:45,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-10 06:49:45,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-10 06:49:45,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:45,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:45,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:49:45,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:45,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77723656] [2025-01-10 06:49:45,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77723656] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:45,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:49:45,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:49:45,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806479491] [2025-01-10 06:49:45,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:45,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:49:45,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:45,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:49:45,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:49:45,975 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 125 [2025-01-10 06:49:45,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 120 transitions, 255 flow. Second operand has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:45,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:45,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 125 [2025-01-10 06:49:45,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:48,799 INFO L124 PetriNetUnfolderBase]: 23220/40491 cut-off events. [2025-01-10 06:49:48,799 INFO L125 PetriNetUnfolderBase]: For 611/611 co-relation queries the response was YES. [2025-01-10 06:49:48,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71977 conditions, 40491 events. 23220/40491 cut-off events. For 611/611 co-relation queries the response was YES. Maximal size of possible extension queue 1561. Compared 365678 event pairs, 5655 based on Foata normal form. 1256/36389 useless extension candidates. Maximal degree in co-relation 70832. Up to 15195 conditions per place. [2025-01-10 06:49:49,068 INFO L140 encePairwiseOnDemand]: 110/125 looper letters, 104 selfloop transitions, 10 changer transitions 0/180 dead transitions. [2025-01-10 06:49:49,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 180 transitions, 615 flow [2025-01-10 06:49:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:49:49,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:49:49,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 396 transitions. [2025-01-10 06:49:49,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.792 [2025-01-10 06:49:49,085 INFO L175 Difference]: Start difference. First operand has 118 places, 120 transitions, 255 flow. Second operand 4 states and 396 transitions. [2025-01-10 06:49:49,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 180 transitions, 615 flow [2025-01-10 06:49:49,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 180 transitions, 600 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-01-10 06:49:49,102 INFO L231 Difference]: Finished difference. Result has 117 places, 124 transitions, 312 flow [2025-01-10 06:49:49,105 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=312, PETRI_PLACES=117, PETRI_TRANSITIONS=124} [2025-01-10 06:49:49,109 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, -1 predicate places. [2025-01-10 06:49:49,110 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 124 transitions, 312 flow [2025-01-10 06:49:49,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.25) internal successors, (281), 4 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:49,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:49,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:49:49,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:49:49,111 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:49:49,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:49,112 INFO L85 PathProgramCache]: Analyzing trace with hash -244758723, now seen corresponding path program 1 times [2025-01-10 06:49:49,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:49,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821815138] [2025-01-10 06:49:49,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:49,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:49,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:49:49,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:49:49,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:49,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:49:49,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:49,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821815138] [2025-01-10 06:49:49,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821815138] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:49,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:49:49,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:49:49,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175734526] [2025-01-10 06:49:49,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:49,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:49:49,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:49,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:49:49,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:49:49,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 125 [2025-01-10 06:49:49,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 124 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:49,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:49,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 125 [2025-01-10 06:49:49,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:51,123 INFO L124 PetriNetUnfolderBase]: 16328/32348 cut-off events. [2025-01-10 06:49:51,123 INFO L125 PetriNetUnfolderBase]: For 6721/7168 co-relation queries the response was YES. [2025-01-10 06:49:51,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59836 conditions, 32348 events. 16328/32348 cut-off events. For 6721/7168 co-relation queries the response was YES. Maximal size of possible extension queue 1305. Compared 320234 event pairs, 7164 based on Foata normal form. 447/28186 useless extension candidates. Maximal degree in co-relation 40982. Up to 11223 conditions per place. [2025-01-10 06:49:51,359 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 71 selfloop transitions, 7 changer transitions 0/152 dead transitions. [2025-01-10 06:49:51,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 152 transitions, 529 flow [2025-01-10 06:49:51,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:49:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:49:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 375 transitions. [2025-01-10 06:49:51,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.75 [2025-01-10 06:49:51,362 INFO L175 Difference]: Start difference. First operand has 117 places, 124 transitions, 312 flow. Second operand 4 states and 375 transitions. [2025-01-10 06:49:51,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 152 transitions, 529 flow [2025-01-10 06:49:51,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 152 transitions, 529 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:49:51,380 INFO L231 Difference]: Finished difference. Result has 120 places, 124 transitions, 336 flow [2025-01-10 06:49:51,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=336, PETRI_PLACES=120, PETRI_TRANSITIONS=124} [2025-01-10 06:49:51,381 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 2 predicate places. [2025-01-10 06:49:51,381 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 124 transitions, 336 flow [2025-01-10 06:49:51,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.0) internal successors, (304), 4 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:51,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:51,383 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:49:51,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:49:51,386 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:49:51,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:51,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1002383371, now seen corresponding path program 1 times [2025-01-10 06:49:51,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:51,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854748179] [2025-01-10 06:49:51,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:51,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:51,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:49:51,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:49:51,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:51,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:49:51,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:51,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854748179] [2025-01-10 06:49:51,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854748179] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:51,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:49:51,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:49:51,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838939158] [2025-01-10 06:49:51,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:51,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:49:51,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:51,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:49:51,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:49:51,503 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 125 [2025-01-10 06:49:51,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 124 transitions, 336 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:51,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:51,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 125 [2025-01-10 06:49:51,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:53,351 INFO L124 PetriNetUnfolderBase]: 17549/33901 cut-off events. [2025-01-10 06:49:53,351 INFO L125 PetriNetUnfolderBase]: For 15579/16026 co-relation queries the response was YES. [2025-01-10 06:49:53,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66490 conditions, 33901 events. 17549/33901 cut-off events. For 15579/16026 co-relation queries the response was YES. Maximal size of possible extension queue 1371. Compared 330637 event pairs, 8032 based on Foata normal form. 685/29693 useless extension candidates. Maximal degree in co-relation 46252. Up to 12560 conditions per place. [2025-01-10 06:49:53,521 INFO L140 encePairwiseOnDemand]: 119/125 looper letters, 73 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2025-01-10 06:49:53,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 150 transitions, 549 flow [2025-01-10 06:49:53,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:49:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:49:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2025-01-10 06:49:53,523 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.732 [2025-01-10 06:49:53,523 INFO L175 Difference]: Start difference. First operand has 120 places, 124 transitions, 336 flow. Second operand 4 states and 366 transitions. [2025-01-10 06:49:53,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 150 transitions, 549 flow [2025-01-10 06:49:53,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 150 transitions, 541 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:49:53,558 INFO L231 Difference]: Finished difference. Result has 120 places, 123 transitions, 338 flow [2025-01-10 06:49:53,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=338, PETRI_PLACES=120, PETRI_TRANSITIONS=123} [2025-01-10 06:49:53,559 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 2 predicate places. [2025-01-10 06:49:53,560 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 123 transitions, 338 flow [2025-01-10 06:49:53,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:53,560 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:53,560 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:49:53,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:49:53,560 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:49:53,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash 937383314, now seen corresponding path program 1 times [2025-01-10 06:49:53,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:53,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727390201] [2025-01-10 06:49:53,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:53,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:53,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:49:53,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:49:53,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:53,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:53,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:49:53,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:53,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727390201] [2025-01-10 06:49:53,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727390201] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:53,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:49:53,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:49:53,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215440574] [2025-01-10 06:49:53,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:53,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:49:53,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:53,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:49:53,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:49:53,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 125 [2025-01-10 06:49:53,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 123 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:53,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:53,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 125 [2025-01-10 06:49:53,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:56,877 INFO L124 PetriNetUnfolderBase]: 34240/59048 cut-off events. [2025-01-10 06:49:56,878 INFO L125 PetriNetUnfolderBase]: For 33562/35459 co-relation queries the response was YES. [2025-01-10 06:49:56,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123730 conditions, 59048 events. 34240/59048 cut-off events. For 33562/35459 co-relation queries the response was YES. Maximal size of possible extension queue 2160. Compared 559488 event pairs, 8670 based on Foata normal form. 3082/53443 useless extension candidates. Maximal degree in co-relation 63394. Up to 21800 conditions per place. [2025-01-10 06:49:57,328 INFO L140 encePairwiseOnDemand]: 110/125 looper letters, 117 selfloop transitions, 10 changer transitions 0/191 dead transitions. [2025-01-10 06:49:57,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 191 transitions, 842 flow [2025-01-10 06:49:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:49:57,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:49:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2025-01-10 06:49:57,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.788 [2025-01-10 06:49:57,331 INFO L175 Difference]: Start difference. First operand has 120 places, 123 transitions, 338 flow. Second operand 4 states and 394 transitions. [2025-01-10 06:49:57,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 191 transitions, 842 flow [2025-01-10 06:49:57,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 191 transitions, 816 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:49:57,521 INFO L231 Difference]: Finished difference. Result has 121 places, 127 transitions, 390 flow [2025-01-10 06:49:57,522 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=390, PETRI_PLACES=121, PETRI_TRANSITIONS=127} [2025-01-10 06:49:57,522 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 3 predicate places. [2025-01-10 06:49:57,522 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 127 transitions, 390 flow [2025-01-10 06:49:57,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.75) internal successors, (283), 4 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:57,523 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:57,523 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:49:57,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:49:57,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:49:57,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:57,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1005887337, now seen corresponding path program 1 times [2025-01-10 06:49:57,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:57,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904789939] [2025-01-10 06:49:57,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:57,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:57,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:49:57,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:49:57,533 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:57,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:57,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:49:57,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:57,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904789939] [2025-01-10 06:49:57,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904789939] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:57,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:49:57,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:49:57,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664208788] [2025-01-10 06:49:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:57,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:49:57,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:57,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:49:57,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:49:57,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 125 [2025-01-10 06:49:57,607 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 127 transitions, 390 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:57,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:57,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 125 [2025-01-10 06:49:57,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:00,304 INFO L124 PetriNetUnfolderBase]: 25254/48639 cut-off events. [2025-01-10 06:50:00,305 INFO L125 PetriNetUnfolderBase]: For 29942/31767 co-relation queries the response was YES. [2025-01-10 06:50:00,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105193 conditions, 48639 events. 25254/48639 cut-off events. For 29942/31767 co-relation queries the response was YES. Maximal size of possible extension queue 1843. Compared 499734 event pairs, 8236 based on Foata normal form. 1356/43639 useless extension candidates. Maximal degree in co-relation 39390. Up to 18012 conditions per place. [2025-01-10 06:50:00,649 INFO L140 encePairwiseOnDemand]: 118/125 looper letters, 80 selfloop transitions, 7 changer transitions 0/159 dead transitions. [2025-01-10 06:50:00,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 159 transitions, 681 flow [2025-01-10 06:50:00,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:00,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:00,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 374 transitions. [2025-01-10 06:50:00,651 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.748 [2025-01-10 06:50:00,651 INFO L175 Difference]: Start difference. First operand has 121 places, 127 transitions, 390 flow. Second operand 4 states and 374 transitions. [2025-01-10 06:50:00,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 159 transitions, 681 flow [2025-01-10 06:50:01,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 159 transitions, 681 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:50:01,131 INFO L231 Difference]: Finished difference. Result has 124 places, 127 transitions, 414 flow [2025-01-10 06:50:01,132 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=414, PETRI_PLACES=124, PETRI_TRANSITIONS=127} [2025-01-10 06:50:01,132 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 6 predicate places. [2025-01-10 06:50:01,132 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 127 transitions, 414 flow [2025-01-10 06:50:01,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:01,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:01,133 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:01,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:50:01,133 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:50:01,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:01,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1009113375, now seen corresponding path program 1 times [2025-01-10 06:50:01,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:01,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778084555] [2025-01-10 06:50:01,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:01,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:01,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:50:01,295 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:50:01,295 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:01,295 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:01,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:01,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778084555] [2025-01-10 06:50:01,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778084555] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:01,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:01,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:01,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356450519] [2025-01-10 06:50:01,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:01,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:50:01,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:01,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:50:01,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:50:01,396 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 125 [2025-01-10 06:50:01,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 127 transitions, 414 flow. Second operand has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:01,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:01,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 125 [2025-01-10 06:50:01,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:05,659 INFO L124 PetriNetUnfolderBase]: 42565/68369 cut-off events. [2025-01-10 06:50:05,659 INFO L125 PetriNetUnfolderBase]: For 50412/53717 co-relation queries the response was YES. [2025-01-10 06:50:05,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164330 conditions, 68369 events. 42565/68369 cut-off events. For 50412/53717 co-relation queries the response was YES. Maximal size of possible extension queue 2359. Compared 604660 event pairs, 10085 based on Foata normal form. 1652/65512 useless extension candidates. Maximal degree in co-relation 65903. Up to 29582 conditions per place. [2025-01-10 06:50:06,089 INFO L140 encePairwiseOnDemand]: 114/125 looper letters, 115 selfloop transitions, 12 changer transitions 0/192 dead transitions. [2025-01-10 06:50:06,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 192 transitions, 910 flow [2025-01-10 06:50:06,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:50:06,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-01-10 06:50:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 466 transitions. [2025-01-10 06:50:06,090 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7456 [2025-01-10 06:50:06,090 INFO L175 Difference]: Start difference. First operand has 124 places, 127 transitions, 414 flow. Second operand 5 states and 466 transitions. [2025-01-10 06:50:06,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 192 transitions, 910 flow [2025-01-10 06:50:06,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 192 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:50:06,756 INFO L231 Difference]: Finished difference. Result has 127 places, 127 transitions, 452 flow [2025-01-10 06:50:06,756 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=452, PETRI_PLACES=127, PETRI_TRANSITIONS=127} [2025-01-10 06:50:06,757 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 9 predicate places. [2025-01-10 06:50:06,757 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 127 transitions, 452 flow [2025-01-10 06:50:06,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.4) internal successors, (362), 5 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:06,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:06,757 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:06,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:50:06,757 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:50:06,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:06,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1009114400, now seen corresponding path program 1 times [2025-01-10 06:50:06,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:06,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313715934] [2025-01-10 06:50:06,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:06,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:06,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:50:06,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:50:06,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:06,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:06,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:06,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:06,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313715934] [2025-01-10 06:50:06,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313715934] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:06,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:06,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:06,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039564476] [2025-01-10 06:50:06,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:06,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:06,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:06,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:06,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:06,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 125 [2025-01-10 06:50:06,837 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 127 transitions, 452 flow. Second operand has 4 states, 4 states have (on average 70.5) internal successors, (282), 4 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:06,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:06,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 125 [2025-01-10 06:50:06,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:10,533 INFO L124 PetriNetUnfolderBase]: 31281/56468 cut-off events. [2025-01-10 06:50:10,533 INFO L125 PetriNetUnfolderBase]: For 60042/62434 co-relation queries the response was YES. [2025-01-10 06:50:10,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138389 conditions, 56468 events. 31281/56468 cut-off events. For 60042/62434 co-relation queries the response was YES. Maximal size of possible extension queue 2051. Compared 557311 event pairs, 9365 based on Foata normal form. 2074/53345 useless extension candidates. Maximal degree in co-relation 52939. Up to 17009 conditions per place. [2025-01-10 06:50:11,092 INFO L140 encePairwiseOnDemand]: 116/125 looper letters, 117 selfloop transitions, 9 changer transitions 0/191 dead transitions. [2025-01-10 06:50:11,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 191 transitions, 926 flow [2025-01-10 06:50:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:50:11,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:50:11,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2025-01-10 06:50:11,093 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.776 [2025-01-10 06:50:11,093 INFO L175 Difference]: Start difference. First operand has 127 places, 127 transitions, 452 flow. Second operand 4 states and 388 transitions. [2025-01-10 06:50:11,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 191 transitions, 926 flow [2025-01-10 06:50:11,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 191 transitions, 916 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:50:11,841 INFO L231 Difference]: Finished difference. Result has 128 places, 125 transitions, 448 flow [2025-01-10 06:50:11,841 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=448, PETRI_PLACES=128, PETRI_TRANSITIONS=125} [2025-01-10 06:50:11,842 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 10 predicate places. [2025-01-10 06:50:11,842 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 125 transitions, 448 flow [2025-01-10 06:50:11,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 4 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:11,842 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:11,842 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:11,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:50:11,843 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:50:11,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:11,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1217744526, now seen corresponding path program 1 times [2025-01-10 06:50:11,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:11,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827040024] [2025-01-10 06:50:11,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:11,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:11,847 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:50:11,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:50:11,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:11,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:11,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:11,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827040024] [2025-01-10 06:50:11,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827040024] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:11,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:11,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:50:11,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016738915] [2025-01-10 06:50:11,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:11,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:50:11,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:11,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:50:11,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:50:11,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 125 [2025-01-10 06:50:11,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 125 transitions, 448 flow. Second operand has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:11,986 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:11,986 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 125 [2025-01-10 06:50:11,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:50:16,594 INFO L124 PetriNetUnfolderBase]: 43377/69475 cut-off events. [2025-01-10 06:50:16,594 INFO L125 PetriNetUnfolderBase]: For 73631/77130 co-relation queries the response was YES. [2025-01-10 06:50:16,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 173696 conditions, 69475 events. 43377/69475 cut-off events. For 73631/77130 co-relation queries the response was YES. Maximal size of possible extension queue 2493. Compared 615203 event pairs, 12433 based on Foata normal form. 3521/68006 useless extension candidates. Maximal degree in co-relation 66041. Up to 23272 conditions per place. [2025-01-10 06:50:17,070 INFO L140 encePairwiseOnDemand]: 112/125 looper letters, 212 selfloop transitions, 13 changer transitions 0/287 dead transitions. [2025-01-10 06:50:17,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 287 transitions, 1479 flow [2025-01-10 06:50:17,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 06:50:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-01-10 06:50:17,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 713 transitions. [2025-01-10 06:50:17,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.713 [2025-01-10 06:50:17,072 INFO L175 Difference]: Start difference. First operand has 128 places, 125 transitions, 448 flow. Second operand 8 states and 713 transitions. [2025-01-10 06:50:17,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 287 transitions, 1479 flow [2025-01-10 06:50:17,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 287 transitions, 1472 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:50:17,456 INFO L231 Difference]: Finished difference. Result has 137 places, 127 transitions, 498 flow [2025-01-10 06:50:17,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=498, PETRI_PLACES=137, PETRI_TRANSITIONS=127} [2025-01-10 06:50:17,457 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 19 predicate places. [2025-01-10 06:50:17,457 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 127 transitions, 498 flow [2025-01-10 06:50:17,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.16666666666667) internal successors, (397), 6 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:17,457 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:50:17,457 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:50:17,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:50:17,457 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2025-01-10 06:50:17,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:50:17,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1174574678, now seen corresponding path program 1 times [2025-01-10 06:50:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:50:17,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507025580] [2025-01-10 06:50:17,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:50:17,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:50:17,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:50:17,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:50:17,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:50:17,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:50:17,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:50:17,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:50:17,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507025580] [2025-01-10 06:50:17,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507025580] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:50:17,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:50:17,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:50:17,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593843329] [2025-01-10 06:50:17,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:50:17,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:50:17,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:50:17,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:50:17,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:50:17,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 125 [2025-01-10 06:50:17,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 127 transitions, 498 flow. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:50:17,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:50:17,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 125 [2025-01-10 06:50:17,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand