./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:02:43,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:02:43,236 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:02:43,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:02:43,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:02:43,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:02:43,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:02:43,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:02:43,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:02:43,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:02:43,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:02:43,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:02:43,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:02:43,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:02:43,298 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:02:43,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:02:43,299 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:02:43,302 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:02:43,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:02:43,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:02:43,305 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:02:43,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:02:43,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:02:43,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:02:43,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:02:43,308 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:02:43,308 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:02:43,308 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:02:43,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:02:43,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:02:43,309 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:02:43,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:02:43,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:02:43,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:02:43,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:02:43,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:02:43,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:02:43,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:02:43,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:02:43,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:02:43,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:02:43,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:02:43,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:02:43,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:02:43,314 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7b74cf7a2419cab3ab4545eb4bb4cb738b0dd565da7b17a0ca0e4253475f1b6 [2024-10-12 00:02:43,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:02:43,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:02:43,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:02:43,648 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:02:43,649 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:02:43,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-10-12 00:02:45,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:02:45,320 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:02:45,320 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-trans.wvr.c [2024-10-12 00:02:45,329 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d9ba1f799/e71f37cb7b9e456f92ff783d0fe32a95/FLAG11014536a [2024-10-12 00:02:45,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d9ba1f799/e71f37cb7b9e456f92ff783d0fe32a95 [2024-10-12 00:02:45,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:02:45,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:02:45,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:02:45,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:02:45,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:02:45,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a84dbb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45, skipping insertion in model container [2024-10-12 00:02:45,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:02:45,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:02:45,631 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:02:45,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:02:45,673 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:02:45,674 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45 WrapperNode [2024-10-12 00:02:45,674 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:02:45,675 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:02:45,675 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:02:45,675 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:02:45,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,692 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,719 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 197 [2024-10-12 00:02:45,719 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:02:45,720 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:02:45,720 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:02:45,720 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:02:45,730 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,733 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,757 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]. [2024-10-12 00:02:45,757 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:02:45,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:02:45,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:02:45,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:02:45,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (1/1) ... [2024-10-12 00:02:45,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:02:45,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:02:45,811 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:02:45,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:02:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:02:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:02:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:02:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:02:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:02:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-12 00:02:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-12 00:02:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:02:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:02:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:02:45,875 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:02:46,004 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:02:46,007 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:02:46,451 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:02:46,452 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:02:46,674 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:02:46,675 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 00:02:46,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:02:46 BoogieIcfgContainer [2024-10-12 00:02:46,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:02:46,682 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:02:46,682 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:02:46,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:02:46,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:02:45" (1/3) ... [2024-10-12 00:02:46,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7ed233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:02:46, skipping insertion in model container [2024-10-12 00:02:46,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:02:45" (2/3) ... [2024-10-12 00:02:46,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7ed233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:02:46, skipping insertion in model container [2024-10-12 00:02:46,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:02:46" (3/3) ... [2024-10-12 00:02:46,691 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-trans.wvr.c [2024-10-12 00:02:46,711 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:02:46,712 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-12 00:02:46,713 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:02:46,853 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-12 00:02:46,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 89 transitions, 199 flow [2024-10-12 00:02:46,954 INFO L124 PetriNetUnfolderBase]: 12/86 cut-off events. [2024-10-12 00:02:46,954 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-12 00:02:46,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 86 events. 12/86 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 313 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2024-10-12 00:02:46,961 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 89 transitions, 199 flow [2024-10-12 00:02:46,966 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 84 transitions, 183 flow [2024-10-12 00:02:46,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:02:46,983 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;@34005a20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:02:46,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-10-12 00:02:46,991 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:02:46,992 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-10-12 00:02:46,992 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-12 00:02:46,992 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:46,993 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:46,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:47,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:47,001 INFO L85 PathProgramCache]: Analyzing trace with hash -629453063, now seen corresponding path program 1 times [2024-10-12 00:02:47,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:47,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320177223] [2024-10-12 00:02:47,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:47,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:47,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:47,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:47,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320177223] [2024-10-12 00:02:47,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320177223] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:47,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:47,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678856151] [2024-10-12 00:02:47,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:47,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:47,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:47,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:47,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-10-12 00:02:47,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 183 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2024-10-12 00:02:47,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:47,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-10-12 00:02:47,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:49,212 INFO L124 PetriNetUnfolderBase]: 8633/13840 cut-off events. [2024-10-12 00:02:49,214 INFO L125 PetriNetUnfolderBase]: For 268/268 co-relation queries the response was YES. [2024-10-12 00:02:49,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25678 conditions, 13840 events. 8633/13840 cut-off events. For 268/268 co-relation queries the response was YES. Maximal size of possible extension queue 853. Compared 105712 event pairs, 2832 based on Foata normal form. 364/11549 useless extension candidates. Maximal degree in co-relation 24979. Up to 5668 conditions per place. [2024-10-12 00:02:49,391 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 86 selfloop transitions, 5 changer transitions 0/133 dead transitions. [2024-10-12 00:02:49,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 133 transitions, 475 flow [2024-10-12 00:02:49,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:49,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 274 transitions. [2024-10-12 00:02:49,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2024-10-12 00:02:49,410 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 183 flow. Second operand 4 states and 274 transitions. [2024-10-12 00:02:49,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 133 transitions, 475 flow [2024-10-12 00:02:49,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 133 transitions, 460 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-12 00:02:49,439 INFO L231 Difference]: Finished difference. Result has 82 places, 86 transitions, 208 flow [2024-10-12 00:02:49,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=82, PETRI_TRANSITIONS=86} [2024-10-12 00:02:49,448 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 0 predicate places. [2024-10-12 00:02:49,450 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 86 transitions, 208 flow [2024-10-12 00:02:49,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2024-10-12 00:02:49,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:49,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:49,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:02:49,452 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:49,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:49,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1961792194, now seen corresponding path program 1 times [2024-10-12 00:02:49,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:49,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564943130] [2024-10-12 00:02:49,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:49,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:49,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564943130] [2024-10-12 00:02:49,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564943130] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:49,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:49,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:02:49,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502372941] [2024-10-12 00:02:49,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:49,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:49,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:49,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:49,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:49,608 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-10-12 00:02:49,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 86 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-10-12 00:02:49,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:49,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-10-12 00:02:49,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:50,825 INFO L124 PetriNetUnfolderBase]: 6311/11503 cut-off events. [2024-10-12 00:02:50,825 INFO L125 PetriNetUnfolderBase]: For 2345/2363 co-relation queries the response was YES. [2024-10-12 00:02:50,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22474 conditions, 11503 events. 6311/11503 cut-off events. For 2345/2363 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 97537 event pairs, 1511 based on Foata normal form. 18/9931 useless extension candidates. Maximal degree in co-relation 11989. Up to 5147 conditions per place. [2024-10-12 00:02:50,928 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 58 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2024-10-12 00:02:50,928 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 108 transitions, 379 flow [2024-10-12 00:02:50,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:50,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:50,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 253 transitions. [2024-10-12 00:02:50,931 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7106741573033708 [2024-10-12 00:02:50,931 INFO L175 Difference]: Start difference. First operand has 82 places, 86 transitions, 208 flow. Second operand 4 states and 253 transitions. [2024-10-12 00:02:50,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 108 transitions, 379 flow [2024-10-12 00:02:50,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 108 transitions, 379 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:02:50,971 INFO L231 Difference]: Finished difference. Result has 84 places, 85 transitions, 214 flow [2024-10-12 00:02:50,972 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=84, PETRI_TRANSITIONS=85} [2024-10-12 00:02:50,973 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 2 predicate places. [2024-10-12 00:02:50,973 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 214 flow [2024-10-12 00:02:50,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2024-10-12 00:02:50,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:50,974 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:50,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 00:02:50,975 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:50,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:50,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1652510514, now seen corresponding path program 1 times [2024-10-12 00:02:50,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:50,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130080797] [2024-10-12 00:02:50,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:50,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:51,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:51,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130080797] [2024-10-12 00:02:51,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130080797] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:51,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:51,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:51,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004009292] [2024-10-12 00:02:51,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:51,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:51,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:51,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:51,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:51,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-10-12 00:02:51,084 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:02:51,084 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:51,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-10-12 00:02:51,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:52,899 INFO L124 PetriNetUnfolderBase]: 10606/17820 cut-off events. [2024-10-12 00:02:52,900 INFO L125 PetriNetUnfolderBase]: For 6332/6941 co-relation queries the response was YES. [2024-10-12 00:02:52,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36166 conditions, 17820 events. 10606/17820 cut-off events. For 6332/6941 co-relation queries the response was YES. Maximal size of possible extension queue 1050. Compared 147793 event pairs, 3534 based on Foata normal form. 763/15551 useless extension candidates. Maximal degree in co-relation 20800. Up to 6926 conditions per place. [2024-10-12 00:02:53,048 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 90 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2024-10-12 00:02:53,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 136 transitions, 560 flow [2024-10-12 00:02:53,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:53,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 272 transitions. [2024-10-12 00:02:53,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7640449438202247 [2024-10-12 00:02:53,054 INFO L175 Difference]: Start difference. First operand has 84 places, 85 transitions, 214 flow. Second operand 4 states and 272 transitions. [2024-10-12 00:02:53,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 136 transitions, 560 flow [2024-10-12 00:02:53,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 136 transitions, 540 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:02:53,131 INFO L231 Difference]: Finished difference. Result has 86 places, 87 transitions, 240 flow [2024-10-12 00:02:53,132 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=86, PETRI_TRANSITIONS=87} [2024-10-12 00:02:53,134 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2024-10-12 00:02:53,135 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 87 transitions, 240 flow [2024-10-12 00:02:53,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:02:53,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:53,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:53,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 00:02:53,136 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:53,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:53,137 INFO L85 PathProgramCache]: Analyzing trace with hash 685984765, now seen corresponding path program 1 times [2024-10-12 00:02:53,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:53,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70029979] [2024-10-12 00:02:53,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:53,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:53,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:53,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:53,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:53,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70029979] [2024-10-12 00:02:53,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70029979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:53,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:53,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:02:53,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686276450] [2024-10-12 00:02:53,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:53,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:53,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:53,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:53,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:53,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-10-12 00:02:53,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 87 transitions, 240 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-10-12 00:02:53,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:53,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-10-12 00:02:53,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:54,461 INFO L124 PetriNetUnfolderBase]: 7663/14327 cut-off events. [2024-10-12 00:02:54,461 INFO L125 PetriNetUnfolderBase]: For 6263/6708 co-relation queries the response was YES. [2024-10-12 00:02:54,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29869 conditions, 14327 events. 7663/14327 cut-off events. For 6263/6708 co-relation queries the response was YES. Maximal size of possible extension queue 881. Compared 128416 event pairs, 1873 based on Foata normal form. 455/13012 useless extension candidates. Maximal degree in co-relation 17251. Up to 6429 conditions per place. [2024-10-12 00:02:54,592 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 63 selfloop transitions, 4 changer transitions 0/111 dead transitions. [2024-10-12 00:02:54,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 111 transitions, 441 flow [2024-10-12 00:02:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:54,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-10-12 00:02:54,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.699438202247191 [2024-10-12 00:02:54,595 INFO L175 Difference]: Start difference. First operand has 86 places, 87 transitions, 240 flow. Second operand 4 states and 249 transitions. [2024-10-12 00:02:54,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 111 transitions, 441 flow [2024-10-12 00:02:54,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 111 transitions, 441 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:02:54,647 INFO L231 Difference]: Finished difference. Result has 88 places, 86 transitions, 244 flow [2024-10-12 00:02:54,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=88, PETRI_TRANSITIONS=86} [2024-10-12 00:02:54,649 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 6 predicate places. [2024-10-12 00:02:54,649 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 86 transitions, 244 flow [2024-10-12 00:02:54,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-10-12 00:02:54,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:54,649 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:54,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 00:02:54,650 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:54,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:54,650 INFO L85 PathProgramCache]: Analyzing trace with hash -311780926, now seen corresponding path program 1 times [2024-10-12 00:02:54,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:54,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885444884] [2024-10-12 00:02:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:54,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:54,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:54,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:54,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885444884] [2024-10-12 00:02:54,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885444884] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:54,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:54,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:02:54,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591357966] [2024-10-12 00:02:54,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:54,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:54,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:54,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:54,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:54,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-10-12 00:02:54,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 244 flow. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-10-12 00:02:54,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:54,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-10-12 00:02:54,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:55,715 INFO L124 PetriNetUnfolderBase]: 7682/14536 cut-off events. [2024-10-12 00:02:55,715 INFO L125 PetriNetUnfolderBase]: For 7388/7622 co-relation queries the response was YES. [2024-10-12 00:02:55,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30765 conditions, 14536 events. 7682/14536 cut-off events. For 7388/7622 co-relation queries the response was YES. Maximal size of possible extension queue 922. Compared 131896 event pairs, 1801 based on Foata normal form. 234/13015 useless extension candidates. Maximal degree in co-relation 17937. Up to 6391 conditions per place. [2024-10-12 00:02:55,829 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 61 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-10-12 00:02:55,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 447 flow [2024-10-12 00:02:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-10-12 00:02:55,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7078651685393258 [2024-10-12 00:02:55,831 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 244 flow. Second operand 4 states and 252 transitions. [2024-10-12 00:02:55,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 109 transitions, 447 flow [2024-10-12 00:02:55,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 433 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:02:55,921 INFO L231 Difference]: Finished difference. Result has 87 places, 85 transitions, 242 flow [2024-10-12 00:02:55,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=87, PETRI_TRANSITIONS=85} [2024-10-12 00:02:55,922 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-10-12 00:02:55,922 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 85 transitions, 242 flow [2024-10-12 00:02:55,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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) [2024-10-12 00:02:55,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:55,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:55,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 00:02:55,923 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:55,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:55,924 INFO L85 PathProgramCache]: Analyzing trace with hash -209308091, now seen corresponding path program 1 times [2024-10-12 00:02:55,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:55,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889452495] [2024-10-12 00:02:55,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:55,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:55,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:55,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:55,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889452495] [2024-10-12 00:02:55,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889452495] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:55,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:55,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:55,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996125472] [2024-10-12 00:02:55,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:55,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:55,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:55,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:55,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:56,015 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-10-12 00:02:56,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 85 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:02:56,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:56,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-10-12 00:02:56,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:57,421 INFO L124 PetriNetUnfolderBase]: 8589/15779 cut-off events. [2024-10-12 00:02:57,421 INFO L125 PetriNetUnfolderBase]: For 8381/8874 co-relation queries the response was YES. [2024-10-12 00:02:57,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33466 conditions, 15779 events. 8589/15779 cut-off events. For 8381/8874 co-relation queries the response was YES. Maximal size of possible extension queue 959. Compared 141525 event pairs, 3715 based on Foata normal form. 472/14104 useless extension candidates. Maximal degree in co-relation 18847. Up to 7012 conditions per place. [2024-10-12 00:02:57,517 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 90 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2024-10-12 00:02:57,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 135 transitions, 580 flow [2024-10-12 00:02:57,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:02:57,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:02:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2024-10-12 00:02:57,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7556179775280899 [2024-10-12 00:02:57,520 INFO L175 Difference]: Start difference. First operand has 87 places, 85 transitions, 242 flow. Second operand 4 states and 269 transitions. [2024-10-12 00:02:57,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 135 transitions, 580 flow [2024-10-12 00:02:57,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 135 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-12 00:02:57,570 INFO L231 Difference]: Finished difference. Result has 86 places, 84 transitions, 233 flow [2024-10-12 00:02:57,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=86, PETRI_TRANSITIONS=84} [2024-10-12 00:02:57,573 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 4 predicate places. [2024-10-12 00:02:57,573 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 84 transitions, 233 flow [2024-10-12 00:02:57,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:02:57,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:57,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:57,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 00:02:57,574 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:57,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:57,575 INFO L85 PathProgramCache]: Analyzing trace with hash -209309116, now seen corresponding path program 1 times [2024-10-12 00:02:57,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:57,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476099469] [2024-10-12 00:02:57,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:57,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:57,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:57,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:57,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476099469] [2024-10-12 00:02:57,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476099469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:57,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:57,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:57,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771468406] [2024-10-12 00:02:57,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:57,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:02:57,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:57,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:02:57,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:02:57,696 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-10-12 00:02:57,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 84 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 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) [2024-10-12 00:02:57,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:57,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-10-12 00:02:57,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:02:58,786 INFO L124 PetriNetUnfolderBase]: 10510/16965 cut-off events. [2024-10-12 00:02:58,786 INFO L125 PetriNetUnfolderBase]: For 5720/6344 co-relation queries the response was YES. [2024-10-12 00:02:58,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37465 conditions, 16965 events. 10510/16965 cut-off events. For 5720/6344 co-relation queries the response was YES. Maximal size of possible extension queue 989. Compared 134175 event pairs, 1805 based on Foata normal form. 314/15775 useless extension candidates. Maximal degree in co-relation 21635. Up to 7845 conditions per place. [2024-10-12 00:02:59,043 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 88 selfloop transitions, 6 changer transitions 0/133 dead transitions. [2024-10-12 00:02:59,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 133 transitions, 561 flow [2024-10-12 00:02:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:02:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-12 00:02:59,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 318 transitions. [2024-10-12 00:02:59,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7146067415730337 [2024-10-12 00:02:59,046 INFO L175 Difference]: Start difference. First operand has 86 places, 84 transitions, 233 flow. Second operand 5 states and 318 transitions. [2024-10-12 00:02:59,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 133 transitions, 561 flow [2024-10-12 00:02:59,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 133 transitions, 555 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:02:59,092 INFO L231 Difference]: Finished difference. Result has 87 places, 83 transitions, 237 flow [2024-10-12 00:02:59,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=87, PETRI_TRANSITIONS=83} [2024-10-12 00:02:59,093 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2024-10-12 00:02:59,093 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 83 transitions, 237 flow [2024-10-12 00:02:59,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.4) internal successors, (237), 5 states have internal predecessors, (237), 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) [2024-10-12 00:02:59,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:02:59,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:02:59,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 00:02:59,095 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:02:59,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:02:59,095 INFO L85 PathProgramCache]: Analyzing trace with hash 297975129, now seen corresponding path program 1 times [2024-10-12 00:02:59,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:02:59,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818136111] [2024-10-12 00:02:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:02:59,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:02:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:02:59,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:02:59,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:02:59,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818136111] [2024-10-12 00:02:59,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818136111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:02:59,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:02:59,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:02:59,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092017698] [2024-10-12 00:02:59,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:02:59,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:02:59,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:02:59,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:02:59,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:02:59,180 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-10-12 00:02:59,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 83 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2024-10-12 00:02:59,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:02:59,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-10-12 00:02:59,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:00,784 INFO L124 PetriNetUnfolderBase]: 12659/21669 cut-off events. [2024-10-12 00:03:00,785 INFO L125 PetriNetUnfolderBase]: For 12861/13943 co-relation queries the response was YES. [2024-10-12 00:03:00,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46647 conditions, 21669 events. 12659/21669 cut-off events. For 12861/13943 co-relation queries the response was YES. Maximal size of possible extension queue 1239. Compared 189168 event pairs, 4628 based on Foata normal form. 1237/19913 useless extension candidates. Maximal degree in co-relation 26777. Up to 8789 conditions per place. [2024-10-12 00:03:00,903 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 94 selfloop transitions, 5 changer transitions 0/136 dead transitions. [2024-10-12 00:03:00,904 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 136 transitions, 629 flow [2024-10-12 00:03:00,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 270 transitions. [2024-10-12 00:03:00,905 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7584269662921348 [2024-10-12 00:03:00,905 INFO L175 Difference]: Start difference. First operand has 87 places, 83 transitions, 237 flow. Second operand 4 states and 270 transitions. [2024-10-12 00:03:00,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 136 transitions, 629 flow [2024-10-12 00:03:00,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 136 transitions, 608 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:03:00,961 INFO L231 Difference]: Finished difference. Result has 89 places, 85 transitions, 262 flow [2024-10-12 00:03:00,961 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=89, PETRI_TRANSITIONS=85} [2024-10-12 00:03:00,962 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 7 predicate places. [2024-10-12 00:03:00,962 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 85 transitions, 262 flow [2024-10-12 00:03:00,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2024-10-12 00:03:00,963 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:00,963 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:00,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 00:03:00,963 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:00,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1075305194, now seen corresponding path program 1 times [2024-10-12 00:03:00,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:00,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883189378] [2024-10-12 00:03:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:00,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:01,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:01,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883189378] [2024-10-12 00:03:01,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883189378] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:01,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:01,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:03:01,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087460811] [2024-10-12 00:03:01,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:01,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:01,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:01,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:01,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:01,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-10-12 00:03:01,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 85 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-10-12 00:03:01,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:01,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-10-12 00:03:01,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:02,048 INFO L124 PetriNetUnfolderBase]: 9275/17800 cut-off events. [2024-10-12 00:03:02,049 INFO L125 PetriNetUnfolderBase]: For 11232/11863 co-relation queries the response was YES. [2024-10-12 00:03:02,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38839 conditions, 17800 events. 9275/17800 cut-off events. For 11232/11863 co-relation queries the response was YES. Maximal size of possible extension queue 1059. Compared 168142 event pairs, 2224 based on Foata normal form. 734/16730 useless extension candidates. Maximal degree in co-relation 23961. Up to 7859 conditions per place. [2024-10-12 00:03:02,332 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 66 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-10-12 00:03:02,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 110 transitions, 489 flow [2024-10-12 00:03:02,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:02,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-10-12 00:03:02,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6966292134831461 [2024-10-12 00:03:02,334 INFO L175 Difference]: Start difference. First operand has 89 places, 85 transitions, 262 flow. Second operand 4 states and 248 transitions. [2024-10-12 00:03:02,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 110 transitions, 489 flow [2024-10-12 00:03:02,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 110 transitions, 489 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:03:02,407 INFO L231 Difference]: Finished difference. Result has 91 places, 84 transitions, 266 flow [2024-10-12 00:03:02,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=91, PETRI_TRANSITIONS=84} [2024-10-12 00:03:02,408 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-10-12 00:03:02,408 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 84 transitions, 266 flow [2024-10-12 00:03:02,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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) [2024-10-12 00:03:02,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:02,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:02,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 00:03:02,409 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:02,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:02,410 INFO L85 PathProgramCache]: Analyzing trace with hash 2101352672, now seen corresponding path program 1 times [2024-10-12 00:03:02,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:02,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081003133] [2024-10-12 00:03:02,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:02,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:02,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:02,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081003133] [2024-10-12 00:03:02,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081003133] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:02,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:02,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:03:02,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279791548] [2024-10-12 00:03:02,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:02,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:03:02,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:02,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:03:02,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:03:02,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-10-12 00:03:02,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 84 transitions, 266 flow. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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) [2024-10-12 00:03:02,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:02,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-10-12 00:03:02,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:04,253 INFO L124 PetriNetUnfolderBase]: 12676/20604 cut-off events. [2024-10-12 00:03:04,253 INFO L125 PetriNetUnfolderBase]: For 15746/16711 co-relation queries the response was YES. [2024-10-12 00:03:04,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49418 conditions, 20604 events. 12676/20604 cut-off events. For 15746/16711 co-relation queries the response was YES. Maximal size of possible extension queue 1168. Compared 168898 event pairs, 2296 based on Foata normal form. 1221/20431 useless extension candidates. Maximal degree in co-relation 30295. Up to 5311 conditions per place. [2024-10-12 00:03:04,366 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 118 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-10-12 00:03:04,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 165 transitions, 817 flow [2024-10-12 00:03:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:03:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:03:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 368 transitions. [2024-10-12 00:03:04,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6891385767790262 [2024-10-12 00:03:04,368 INFO L175 Difference]: Start difference. First operand has 91 places, 84 transitions, 266 flow. Second operand 6 states and 368 transitions. [2024-10-12 00:03:04,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 165 transitions, 817 flow [2024-10-12 00:03:04,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 165 transitions, 791 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:03:04,425 INFO L231 Difference]: Finished difference. Result has 93 places, 84 transitions, 283 flow [2024-10-12 00:03:04,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=283, PETRI_PLACES=93, PETRI_TRANSITIONS=84} [2024-10-12 00:03:04,425 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-10-12 00:03:04,426 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 84 transitions, 283 flow [2024-10-12 00:03:04,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 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) [2024-10-12 00:03:04,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:04,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:04,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 00:03:04,426 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:04,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:04,427 INFO L85 PathProgramCache]: Analyzing trace with hash 647295124, now seen corresponding path program 1 times [2024-10-12 00:03:04,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:04,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059040888] [2024-10-12 00:03:04,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:04,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:04,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:04,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059040888] [2024-10-12 00:03:04,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059040888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:04,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:04,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:03:04,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374156287] [2024-10-12 00:03:04,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:04,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:04,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:04,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:04,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:04,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 89 [2024-10-12 00:03:04,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 84 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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) [2024-10-12 00:03:04,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:04,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 89 [2024-10-12 00:03:04,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:05,598 INFO L124 PetriNetUnfolderBase]: 9329/17938 cut-off events. [2024-10-12 00:03:05,598 INFO L125 PetriNetUnfolderBase]: For 17304/18410 co-relation queries the response was YES. [2024-10-12 00:03:05,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41641 conditions, 17938 events. 9329/17938 cut-off events. For 17304/18410 co-relation queries the response was YES. Maximal size of possible extension queue 1062. Compared 170328 event pairs, 2522 based on Foata normal form. 959/17172 useless extension candidates. Maximal degree in co-relation 24671. Up to 7058 conditions per place. [2024-10-12 00:03:05,727 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 66 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-10-12 00:03:05,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 109 transitions, 528 flow [2024-10-12 00:03:05,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:05,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:05,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-10-12 00:03:05,729 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7050561797752809 [2024-10-12 00:03:05,729 INFO L175 Difference]: Start difference. First operand has 93 places, 84 transitions, 283 flow. Second operand 4 states and 251 transitions. [2024-10-12 00:03:05,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 109 transitions, 528 flow [2024-10-12 00:03:05,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 109 transitions, 506 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-12 00:03:05,831 INFO L231 Difference]: Finished difference. Result has 91 places, 83 transitions, 276 flow [2024-10-12 00:03:05,831 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=91, PETRI_TRANSITIONS=83} [2024-10-12 00:03:05,832 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-10-12 00:03:05,832 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 83 transitions, 276 flow [2024-10-12 00:03:05,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 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) [2024-10-12 00:03:05,833 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:05,833 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:05,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 00:03:05,833 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:05,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:05,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1025278053, now seen corresponding path program 1 times [2024-10-12 00:03:05,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:05,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673723279] [2024-10-12 00:03:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:05,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:05,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:05,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:05,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673723279] [2024-10-12 00:03:05,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673723279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:05,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:05,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:03:05,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918133383] [2024-10-12 00:03:05,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:05,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:05,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:05,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:05,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:05,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-10-12 00:03:05,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 83 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2024-10-12 00:03:05,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:05,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-10-12 00:03:05,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:07,162 INFO L124 PetriNetUnfolderBase]: 10491/19538 cut-off events. [2024-10-12 00:03:07,162 INFO L125 PetriNetUnfolderBase]: For 17090/18481 co-relation queries the response was YES. [2024-10-12 00:03:07,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45405 conditions, 19538 events. 10491/19538 cut-off events. For 17090/18481 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 181634 event pairs, 4640 based on Foata normal form. 1322/18808 useless extension candidates. Maximal degree in co-relation 27526. Up to 8518 conditions per place. [2024-10-12 00:03:07,286 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 97 selfloop transitions, 4 changer transitions 0/137 dead transitions. [2024-10-12 00:03:07,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 137 transitions, 688 flow [2024-10-12 00:03:07,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:07,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:07,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 267 transitions. [2024-10-12 00:03:07,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-10-12 00:03:07,288 INFO L175 Difference]: Start difference. First operand has 91 places, 83 transitions, 276 flow. Second operand 4 states and 267 transitions. [2024-10-12 00:03:07,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 137 transitions, 688 flow [2024-10-12 00:03:07,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 137 transitions, 665 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-12 00:03:07,361 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 267 flow [2024-10-12 00:03:07,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=267, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2024-10-12 00:03:07,362 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 8 predicate places. [2024-10-12 00:03:07,362 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 267 flow [2024-10-12 00:03:07,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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) [2024-10-12 00:03:07,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:07,363 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:07,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 00:03:07,363 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:07,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:07,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1025277028, now seen corresponding path program 1 times [2024-10-12 00:03:07,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:07,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242101521] [2024-10-12 00:03:07,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:07,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:07,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:07,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:07,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242101521] [2024-10-12 00:03:07,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242101521] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:07,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:07,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:03:07,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721317584] [2024-10-12 00:03:07,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:07,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:03:07,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:03:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:03:07,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-10-12 00:03:07,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 82 transitions, 267 flow. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 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) [2024-10-12 00:03:07,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:07,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-10-12 00:03:07,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:09,341 INFO L124 PetriNetUnfolderBase]: 12797/20792 cut-off events. [2024-10-12 00:03:09,342 INFO L125 PetriNetUnfolderBase]: For 15609/17548 co-relation queries the response was YES. [2024-10-12 00:03:09,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50905 conditions, 20792 events. 12797/20792 cut-off events. For 15609/17548 co-relation queries the response was YES. Maximal size of possible extension queue 1135. Compared 169158 event pairs, 2189 based on Foata normal form. 1372/20954 useless extension candidates. Maximal degree in co-relation 31234. Up to 9635 conditions per place. [2024-10-12 00:03:09,483 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 95 selfloop transitions, 6 changer transitions 0/135 dead transitions. [2024-10-12 00:03:09,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 135 transitions, 669 flow [2024-10-12 00:03:09,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:03:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-12 00:03:09,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 316 transitions. [2024-10-12 00:03:09,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7101123595505618 [2024-10-12 00:03:09,485 INFO L175 Difference]: Start difference. First operand has 90 places, 82 transitions, 267 flow. Second operand 5 states and 316 transitions. [2024-10-12 00:03:09,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 135 transitions, 669 flow [2024-10-12 00:03:09,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 135 transitions, 663 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:03:09,566 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 271 flow [2024-10-12 00:03:09,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=271, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-10-12 00:03:09,567 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-10-12 00:03:09,567 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 271 flow [2024-10-12 00:03:09,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 5 states have internal predecessors, (239), 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) [2024-10-12 00:03:09,567 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:09,568 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:09,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 00:03:09,568 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:09,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:09,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1664741162, now seen corresponding path program 1 times [2024-10-12 00:03:09,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:09,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547485948] [2024-10-12 00:03:09,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:09,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:09,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:09,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:09,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547485948] [2024-10-12 00:03:09,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547485948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:09,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:09,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 00:03:09,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736526792] [2024-10-12 00:03:09,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:09,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:03:09,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:09,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:03:09,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:03:09,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-10-12 00:03:09,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 271 flow. Second operand has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-10-12 00:03:09,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:09,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-10-12 00:03:09,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:11,374 INFO L124 PetriNetUnfolderBase]: 12652/20642 cut-off events. [2024-10-12 00:03:11,374 INFO L125 PetriNetUnfolderBase]: For 17164/18020 co-relation queries the response was YES. [2024-10-12 00:03:11,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50828 conditions, 20642 events. 12652/20642 cut-off events. For 17164/18020 co-relation queries the response was YES. Maximal size of possible extension queue 1129. Compared 168882 event pairs, 4671 based on Foata normal form. 910/20216 useless extension candidates. Maximal degree in co-relation 30927. Up to 8859 conditions per place. [2024-10-12 00:03:11,490 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 149 selfloop transitions, 8 changer transitions 0/190 dead transitions. [2024-10-12 00:03:11,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 190 transitions, 983 flow [2024-10-12 00:03:11,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:03:11,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:03:11,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 396 transitions. [2024-10-12 00:03:11,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2024-10-12 00:03:11,492 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 271 flow. Second operand 6 states and 396 transitions. [2024-10-12 00:03:11,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 190 transitions, 983 flow [2024-10-12 00:03:11,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 190 transitions, 945 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-12 00:03:11,622 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 286 flow [2024-10-12 00:03:11,622 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=286, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-10-12 00:03:11,623 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-10-12 00:03:11,623 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 286 flow [2024-10-12 00:03:11,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.6) internal successors, (223), 5 states have internal predecessors, (223), 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) [2024-10-12 00:03:11,623 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:11,624 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:11,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 00:03:11,624 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:11,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1408718691, now seen corresponding path program 1 times [2024-10-12 00:03:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513065666] [2024-10-12 00:03:11,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:11,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:11,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:11,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513065666] [2024-10-12 00:03:11,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513065666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:11,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:11,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:03:11,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075587182] [2024-10-12 00:03:11,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:11,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:11,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:11,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:11,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 89 [2024-10-12 00:03:11,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-10-12 00:03:11,686 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:11,686 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 89 [2024-10-12 00:03:11,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:13,277 INFO L124 PetriNetUnfolderBase]: 9321/17281 cut-off events. [2024-10-12 00:03:13,277 INFO L125 PetriNetUnfolderBase]: For 20529/21488 co-relation queries the response was YES. [2024-10-12 00:03:13,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40962 conditions, 17281 events. 9321/17281 cut-off events. For 20529/21488 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 157631 event pairs, 2522 based on Foata normal form. 1213/16891 useless extension candidates. Maximal degree in co-relation 28146. Up to 7312 conditions per place. [2024-10-12 00:03:13,354 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 69 selfloop transitions, 4 changer transitions 0/108 dead transitions. [2024-10-12 00:03:13,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 108 transitions, 543 flow [2024-10-12 00:03:13,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:13,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2024-10-12 00:03:13,356 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6938202247191011 [2024-10-12 00:03:13,356 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 286 flow. Second operand 4 states and 247 transitions. [2024-10-12 00:03:13,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 108 transitions, 543 flow [2024-10-12 00:03:13,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 108 transitions, 515 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-10-12 00:03:13,416 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 274 flow [2024-10-12 00:03:13,416 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=274, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-10-12 00:03:13,416 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-10-12 00:03:13,416 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 274 flow [2024-10-12 00:03:13,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-10-12 00:03:13,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:13,417 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:13,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 00:03:13,417 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:13,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:13,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1718817497, now seen corresponding path program 1 times [2024-10-12 00:03:13,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:13,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945742836] [2024-10-12 00:03:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:13,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:13,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:13,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:13,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945742836] [2024-10-12 00:03:13,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945742836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:13,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:13,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:03:13,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857539661] [2024-10-12 00:03:13,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:13,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:03:13,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:13,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:03:13,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:03:13,512 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-10-12 00:03:13,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 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) [2024-10-12 00:03:13,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:13,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-10-12 00:03:13,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:14,869 INFO L124 PetriNetUnfolderBase]: 12797/20226 cut-off events. [2024-10-12 00:03:14,869 INFO L125 PetriNetUnfolderBase]: For 22075/23456 co-relation queries the response was YES. [2024-10-12 00:03:14,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50772 conditions, 20226 events. 12797/20226 cut-off events. For 22075/23456 co-relation queries the response was YES. Maximal size of possible extension queue 1138. Compared 158846 event pairs, 2180 based on Foata normal form. 1931/20947 useless extension candidates. Maximal degree in co-relation 34723. Up to 5475 conditions per place. [2024-10-12 00:03:15,007 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 123 selfloop transitions, 9 changer transitions 0/165 dead transitions. [2024-10-12 00:03:15,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 165 transitions, 874 flow [2024-10-12 00:03:15,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:03:15,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:03:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 365 transitions. [2024-10-12 00:03:15,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6835205992509363 [2024-10-12 00:03:15,009 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 274 flow. Second operand 6 states and 365 transitions. [2024-10-12 00:03:15,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 165 transitions, 874 flow [2024-10-12 00:03:15,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 165 transitions, 848 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:03:15,078 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 291 flow [2024-10-12 00:03:15,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=291, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-10-12 00:03:15,078 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 11 predicate places. [2024-10-12 00:03:15,078 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 291 flow [2024-10-12 00:03:15,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.5) internal successors, (267), 6 states have internal predecessors, (267), 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) [2024-10-12 00:03:15,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:15,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:15,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 00:03:15,079 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:15,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:15,079 INFO L85 PathProgramCache]: Analyzing trace with hash -720606762, now seen corresponding path program 1 times [2024-10-12 00:03:15,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:15,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147379595] [2024-10-12 00:03:15,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:15,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:15,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:15,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147379595] [2024-10-12 00:03:15,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147379595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:15,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:15,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:03:15,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114427553] [2024-10-12 00:03:15,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:15,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:03:15,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:15,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:03:15,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:03:15,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 89 [2024-10-12 00:03:15,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 291 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 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) [2024-10-12 00:03:15,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:15,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 89 [2024-10-12 00:03:15,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:16,442 INFO L124 PetriNetUnfolderBase]: 12930/20270 cut-off events. [2024-10-12 00:03:16,442 INFO L125 PetriNetUnfolderBase]: For 29666/31972 co-relation queries the response was YES. [2024-10-12 00:03:16,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53335 conditions, 20270 events. 12930/20270 cut-off events. For 29666/31972 co-relation queries the response was YES. Maximal size of possible extension queue 1096. Compared 156721 event pairs, 2539 based on Foata normal form. 2053/21350 useless extension candidates. Maximal degree in co-relation 36672. Up to 9002 conditions per place. [2024-10-12 00:03:16,561 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 99 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2024-10-12 00:03:16,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 136 transitions, 743 flow [2024-10-12 00:03:16,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:03:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-12 00:03:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 314 transitions. [2024-10-12 00:03:16,563 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7056179775280899 [2024-10-12 00:03:16,563 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 291 flow. Second operand 5 states and 314 transitions. [2024-10-12 00:03:16,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 136 transitions, 743 flow [2024-10-12 00:03:16,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 136 transitions, 712 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-12 00:03:16,638 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 288 flow [2024-10-12 00:03:16,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=288, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2024-10-12 00:03:16,639 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 10 predicate places. [2024-10-12 00:03:16,639 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 288 flow [2024-10-12 00:03:16,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 states have internal predecessors, (241), 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) [2024-10-12 00:03:16,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:16,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:16,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 00:03:16,639 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:16,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash -720605737, now seen corresponding path program 1 times [2024-10-12 00:03:16,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:16,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436729982] [2024-10-12 00:03:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:16,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:16,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436729982] [2024-10-12 00:03:16,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436729982] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:16,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:16,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:03:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430005644] [2024-10-12 00:03:16,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:16,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:16,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-10-12 00:03:16,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2024-10-12 00:03:16,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:16,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-10-12 00:03:16,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:18,109 INFO L124 PetriNetUnfolderBase]: 10522/18008 cut-off events. [2024-10-12 00:03:18,109 INFO L125 PetriNetUnfolderBase]: For 22769/24514 co-relation queries the response was YES. [2024-10-12 00:03:18,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45473 conditions, 18008 events. 10522/18008 cut-off events. For 22769/24514 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 153033 event pairs, 4871 based on Foata normal form. 1861/18896 useless extension candidates. Maximal degree in co-relation 31247. Up to 8895 conditions per place. [2024-10-12 00:03:18,271 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 101 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-10-12 00:03:18,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 136 transitions, 720 flow [2024-10-12 00:03:18,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:18,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:18,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-10-12 00:03:18,272 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-10-12 00:03:18,272 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 288 flow. Second operand 4 states and 265 transitions. [2024-10-12 00:03:18,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 136 transitions, 720 flow [2024-10-12 00:03:18,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 136 transitions, 708 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-12 00:03:18,351 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 278 flow [2024-10-12 00:03:18,352 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-10-12 00:03:18,352 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-10-12 00:03:18,352 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 278 flow [2024-10-12 00:03:18,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2024-10-12 00:03:18,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:18,353 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:18,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 00:03:18,353 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:18,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:18,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1603914646, now seen corresponding path program 1 times [2024-10-12 00:03:18,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:18,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570540003] [2024-10-12 00:03:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:18,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:18,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:18,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570540003] [2024-10-12 00:03:18,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570540003] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:18,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:18,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:03:18,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478757718] [2024-10-12 00:03:18,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:18,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:18,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:18,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:18,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:18,416 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2024-10-12 00:03:18,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2024-10-12 00:03:18,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:18,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2024-10-12 00:03:18,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:19,717 INFO L124 PetriNetUnfolderBase]: 12701/20098 cut-off events. [2024-10-12 00:03:19,718 INFO L125 PetriNetUnfolderBase]: For 24570/26071 co-relation queries the response was YES. [2024-10-12 00:03:19,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51490 conditions, 20098 events. 12701/20098 cut-off events. For 24570/26071 co-relation queries the response was YES. Maximal size of possible extension queue 1112. Compared 158119 event pairs, 4595 based on Foata normal form. 1776/20867 useless extension candidates. Maximal degree in co-relation 35113. Up to 8717 conditions per place. [2024-10-12 00:03:19,834 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 99 selfloop transitions, 5 changer transitions 0/135 dead transitions. [2024-10-12 00:03:19,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 135 transitions, 707 flow [2024-10-12 00:03:19,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:19,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-10-12 00:03:19,836 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7443820224719101 [2024-10-12 00:03:19,837 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 278 flow. Second operand 4 states and 265 transitions. [2024-10-12 00:03:19,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 135 transitions, 707 flow [2024-10-12 00:03:19,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 135 transitions, 688 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:03:19,887 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 282 flow [2024-10-12 00:03:19,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-10-12 00:03:19,888 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 9 predicate places. [2024-10-12 00:03:19,888 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 282 flow [2024-10-12 00:03:19,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 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) [2024-10-12 00:03:19,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:19,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:19,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 00:03:19,888 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:19,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:19,889 INFO L85 PathProgramCache]: Analyzing trace with hash -863972416, now seen corresponding path program 1 times [2024-10-12 00:03:19,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:19,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102839537] [2024-10-12 00:03:19,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:19,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:19,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:19,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102839537] [2024-10-12 00:03:19,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102839537] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:19,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:19,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:03:19,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577202441] [2024-10-12 00:03:19,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:19,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:03:19,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:19,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:03:19,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:03:19,986 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-10-12 00:03:19,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2024-10-12 00:03:19,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:19,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-10-12 00:03:19,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:21,266 INFO L124 PetriNetUnfolderBase]: 13746/21383 cut-off events. [2024-10-12 00:03:21,266 INFO L125 PetriNetUnfolderBase]: For 30736/32891 co-relation queries the response was YES. [2024-10-12 00:03:21,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56967 conditions, 21383 events. 13746/21383 cut-off events. For 30736/32891 co-relation queries the response was YES. Maximal size of possible extension queue 1169. Compared 165224 event pairs, 2778 based on Foata normal form. 2709/23037 useless extension candidates. Maximal degree in co-relation 44476. Up to 5557 conditions per place. [2024-10-12 00:03:21,608 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 128 selfloop transitions, 9 changer transitions 0/166 dead transitions. [2024-10-12 00:03:21,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 166 transitions, 934 flow [2024-10-12 00:03:21,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:03:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:03:21,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 362 transitions. [2024-10-12 00:03:21,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6779026217228464 [2024-10-12 00:03:21,610 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 282 flow. Second operand 6 states and 362 transitions. [2024-10-12 00:03:21,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 166 transitions, 934 flow [2024-10-12 00:03:21,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 166 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:03:21,679 INFO L231 Difference]: Finished difference. Result has 95 places, 79 transitions, 303 flow [2024-10-12 00:03:21,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=95, PETRI_TRANSITIONS=79} [2024-10-12 00:03:21,680 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 13 predicate places. [2024-10-12 00:03:21,680 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 79 transitions, 303 flow [2024-10-12 00:03:21,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.833333333333336) internal successors, (269), 6 states have internal predecessors, (269), 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) [2024-10-12 00:03:21,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:21,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:21,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 00:03:21,681 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-10-12 00:03:21,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash -66023300, now seen corresponding path program 1 times [2024-10-12 00:03:21,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:21,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091273988] [2024-10-12 00:03:21,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:21,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:21,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:21,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:21,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:21,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091273988] [2024-10-12 00:03:21,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091273988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:21,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:21,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 00:03:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746896029] [2024-10-12 00:03:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:21,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:03:21,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:03:21,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 00:03:21,757 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-10-12 00:03:21,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 79 transitions, 303 flow. Second operand has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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) [2024-10-12 00:03:21,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:21,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-10-12 00:03:21,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:23,388 INFO L124 PetriNetUnfolderBase]: 13746/20724 cut-off events. [2024-10-12 00:03:23,388 INFO L125 PetriNetUnfolderBase]: For 32307/34421 co-relation queries the response was YES. [2024-10-12 00:03:23,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58546 conditions, 20724 events. 13746/20724 cut-off events. For 32307/34421 co-relation queries the response was YES. Maximal size of possible extension queue 1145. Compared 153317 event pairs, 5330 based on Foata normal form. 2391/22568 useless extension candidates. Maximal degree in co-relation 45907. Up to 9937 conditions per place. [2024-10-12 00:03:23,483 INFO L140 encePairwiseOnDemand]: 82/89 looper letters, 0 selfloop transitions, 0 changer transitions 196/196 dead transitions. [2024-10-12 00:03:23,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 196 transitions, 1131 flow [2024-10-12 00:03:23,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:03:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:03:23,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 388 transitions. [2024-10-12 00:03:23,485 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7265917602996255 [2024-10-12 00:03:23,485 INFO L175 Difference]: Start difference. First operand has 95 places, 79 transitions, 303 flow. Second operand 6 states and 388 transitions. [2024-10-12 00:03:23,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 196 transitions, 1131 flow [2024-10-12 00:03:23,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 196 transitions, 1113 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-12 00:03:23,740 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-10-12 00:03:23,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2024-10-12 00:03:23,741 INFO L277 CegarLoopForPetriNet]: 82 programPoint places, 12 predicate places. [2024-10-12 00:03:23,741 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-10-12 00:03:23,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 45.4) internal successors, (227), 5 states have internal predecessors, (227), 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) [2024-10-12 00:03:23,744 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-10-12 00:03:23,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-10-12 00:03:23,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-10-12 00:03:23,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-10-12 00:03:23,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-10-12 00:03:23,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-10-12 00:03:23,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-10-12 00:03:23,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-10-12 00:03:23,747 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-10-12 00:03:23,748 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-10-12 00:03:23,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-10-12 00:03:23,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-10-12 00:03:23,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-10-12 00:03:23,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-10-12 00:03:23,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-10-12 00:03:23,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-10-12 00:03:23,749 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-10-12 00:03:23,750 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-10-12 00:03:23,750 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-10-12 00:03:23,750 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-10-12 00:03:23,750 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-10-12 00:03:23,751 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-10-12 00:03:23,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-10-12 00:03:23,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-10-12 00:03:23,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-10-12 00:03:23,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-10-12 00:03:23,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-10-12 00:03:23,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-10-12 00:03:23,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-10-12 00:03:23,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-10-12 00:03:23,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-10-12 00:03:23,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-10-12 00:03:23,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 00:03:23,754 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:23,764 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-12 00:03:23,764 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 00:03:23,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 12:03:23 BasicIcfg [2024-10-12 00:03:23,772 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 00:03:23,773 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:03:23,773 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:03:23,773 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:03:23,774 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:02:46" (3/4) ... [2024-10-12 00:03:23,775 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 00:03:23,778 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-12 00:03:23,778 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-12 00:03:23,778 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-12 00:03:23,783 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-10-12 00:03:23,783 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-12 00:03:23,783 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 00:03:23,784 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-12 00:03:23,866 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:03:23,866 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 00:03:23,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:03:23,867 INFO L158 Benchmark]: Toolchain (without parser) took 38514.89ms. Allocated memory was 174.1MB in the beginning and 13.6GB in the end (delta: 13.4GB). Free memory was 122.9MB in the beginning and 11.5GB in the end (delta: -11.4GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-10-12 00:03:23,867 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 174.1MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:03:23,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.58ms. Allocated memory is still 174.1MB. Free memory was 122.5MB in the beginning and 108.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-12 00:03:23,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.48ms. Allocated memory is still 174.1MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:03:23,868 INFO L158 Benchmark]: Boogie Preprocessor took 52.17ms. Allocated memory is still 174.1MB. Free memory was 106.5MB in the beginning and 104.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:03:23,868 INFO L158 Benchmark]: RCFGBuilder took 906.57ms. Allocated memory is still 174.1MB. Free memory was 104.0MB in the beginning and 56.2MB in the end (delta: 47.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-12 00:03:23,870 INFO L158 Benchmark]: TraceAbstraction took 37090.26ms. Allocated memory was 174.1MB in the beginning and 13.6GB in the end (delta: 13.4GB). Free memory was 55.4MB in the beginning and 11.5GB in the end (delta: -11.5GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-10-12 00:03:23,870 INFO L158 Benchmark]: Witness Printer took 93.71ms. Allocated memory is still 13.6GB. Free memory was 11.5GB in the beginning and 11.5GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-12 00:03:23,871 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 174.1MB. Free memory is still 139.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.58ms. Allocated memory is still 174.1MB. Free memory was 122.5MB in the beginning and 108.6MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.48ms. Allocated memory is still 174.1MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.17ms. Allocated memory is still 174.1MB. Free memory was 106.5MB in the beginning and 104.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 906.57ms. Allocated memory is still 174.1MB. Free memory was 104.0MB in the beginning and 56.2MB in the end (delta: 47.8MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * TraceAbstraction took 37090.26ms. Allocated memory was 174.1MB in the beginning and 13.6GB in the end (delta: 13.4GB). Free memory was 55.4MB in the beginning and 11.5GB in the end (delta: -11.5GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Witness Printer took 93.71ms. Allocated memory is still 13.6GB. Free memory was 11.5GB in the beginning and 11.5GB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 147 locations, 39 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 36.9s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2056 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1755 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4140 IncrementalHoareTripleChecker+Invalid, 4244 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 125 mSDtfsCounter, 4140 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=303occurred in iteration=20, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 731 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-12 00:03:23,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE