./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/parallel-misc-2-unrolled-atomic.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9010a499ef96f31ef98b99a567d66bd11342d64ef955a852686bd9085f4ce268 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 22:00:46,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 22:00:46,259 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 22:00:46,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 22:00:46,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 22:00:46,303 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 22:00:46,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 22:00:46,306 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 22:00:46,306 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 22:00:46,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 22:00:46,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 22:00:46,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 22:00:46,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 22:00:46,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 22:00:46,311 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 22:00:46,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 22:00:46,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 22:00:46,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 22:00:46,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 22:00:46,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 22:00:46,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 22:00:46,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 22:00:46,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 22:00:46,318 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 22:00:46,318 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 22:00:46,318 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 22:00:46,319 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 22:00:46,319 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 22:00:46,319 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 22:00:46,319 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 22:00:46,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 22:00:46,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 22:00:46,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 22:00:46,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 22:00:46,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:00:46,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 22:00:46,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 22:00:46,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 22:00:46,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 22:00:46,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 22:00:46,324 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 22:00:46,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 22:00:46,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 22:00:46,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 22:00:46,325 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9010a499ef96f31ef98b99a567d66bd11342d64ef955a852686bd9085f4ce268 [2024-11-20 22:00:46,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 22:00:46,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 22:00:46,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 22:00:46,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 22:00:46,606 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 22:00:46,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2024-11-20 22:00:48,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 22:00:48,235 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 22:00:48,236 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-misc-2-unrolled-atomic.wvr.c [2024-11-20 22:00:48,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c1bed13c/b0c9ff0c09864085b84652b87694218b/FLAGe4fc791b1 [2024-11-20 22:00:48,259 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c1bed13c/b0c9ff0c09864085b84652b87694218b [2024-11-20 22:00:48,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 22:00:48,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 22:00:48,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 22:00:48,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 22:00:48,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 22:00:48,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,274 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b57f82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48, skipping insertion in model container [2024-11-20 22:00:48,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,295 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 22:00:48,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:00:48,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 22:00:48,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 22:00:48,558 INFO L204 MainTranslator]: Completed translation [2024-11-20 22:00:48,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48 WrapperNode [2024-11-20 22:00:48,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 22:00:48,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 22:00:48,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 22:00:48,560 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 22:00:48,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,602 INFO L138 Inliner]: procedures = 19, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2024-11-20 22:00:48,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 22:00:48,604 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 22:00:48,604 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 22:00:48,604 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 22:00:48,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,618 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,635 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]. [2024-11-20 22:00:48,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 22:00:48,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 22:00:48,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 22:00:48,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 22:00:48,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (1/1) ... [2024-11-20 22:00:48,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 22:00:48,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:48,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 22:00:48,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 22:00:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 22:00:48,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 22:00:48,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 22:00:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 22:00:48,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 22:00:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 22:00:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 22:00:48,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 22:00:48,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 22:00:48,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 22:00:48,754 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 22:00:48,854 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 22:00:48,856 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 22:00:49,095 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 22:00:49,095 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 22:00:49,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 22:00:49,342 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 22:00:49,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:00:49 BoogieIcfgContainer [2024-11-20 22:00:49,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 22:00:49,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 22:00:49,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 22:00:49,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 22:00:49,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:00:48" (1/3) ... [2024-11-20 22:00:49,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e8866a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:00:49, skipping insertion in model container [2024-11-20 22:00:49,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:00:48" (2/3) ... [2024-11-20 22:00:49,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e8866a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:00:49, skipping insertion in model container [2024-11-20 22:00:49,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:00:49" (3/3) ... [2024-11-20 22:00:49,355 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2-unrolled-atomic.wvr.c [2024-11-20 22:00:49,390 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 22:00:49,391 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-11-20 22:00:49,392 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 22:00:49,463 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 22:00:49,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 46 transitions, 106 flow [2024-11-20 22:00:49,527 INFO L124 PetriNetUnfolderBase]: 4/44 cut-off events. [2024-11-20 22:00:49,530 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 22:00:49,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 44 events. 4/44 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 140 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-20 22:00:49,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 46 transitions, 106 flow [2024-11-20 22:00:49,540 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 42 transitions, 93 flow [2024-11-20 22:00:49,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 22:00:49,560 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;@6aaefd2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 22:00:49,560 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-20 22:00:49,564 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 22:00:49,565 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-20 22:00:49,565 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 22:00:49,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:49,568 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 22:00:49,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:49,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:49,573 INFO L85 PathProgramCache]: Analyzing trace with hash 12167434, now seen corresponding path program 1 times [2024-11-20 22:00:49,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:49,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637909091] [2024-11-20 22:00:49,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:49,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:49,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:49,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:49,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637909091] [2024-11-20 22:00:49,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637909091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:49,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:49,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:49,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324717895] [2024-11-20 22:00:49,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:49,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:49,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:49,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:49,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:49,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 46 [2024-11-20 22:00:49,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 42 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-20 22:00:49,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:49,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 46 [2024-11-20 22:00:49,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:50,060 INFO L124 PetriNetUnfolderBase]: 558/877 cut-off events. [2024-11-20 22:00:50,061 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-20 22:00:50,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1691 conditions, 877 events. 558/877 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 4880 event pairs, 268 based on Foata normal form. 73/445 useless extension candidates. Maximal degree in co-relation 1615. Up to 778 conditions per place. [2024-11-20 22:00:50,075 INFO L140 encePairwiseOnDemand]: 37/46 looper letters, 23 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2024-11-20 22:00:50,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 34 transitions, 125 flow [2024-11-20 22:00:50,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:50,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2024-11-20 22:00:50,090 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4927536231884058 [2024-11-20 22:00:50,092 INFO L175 Difference]: Start difference. First operand has 45 places, 42 transitions, 93 flow. Second operand 3 states and 68 transitions. [2024-11-20 22:00:50,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 34 transitions, 125 flow [2024-11-20 22:00:50,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 34 transitions, 120 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 22:00:50,098 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 74 flow [2024-11-20 22:00:50,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2024-11-20 22:00:50,105 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -7 predicate places. [2024-11-20 22:00:50,106 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 74 flow [2024-11-20 22:00:50,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-20 22:00:50,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:50,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-20 22:00:50,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 22:00:50,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:50,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:50,108 INFO L85 PathProgramCache]: Analyzing trace with hash 377190856, now seen corresponding path program 1 times [2024-11-20 22:00:50,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:50,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520373151] [2024-11-20 22:00:50,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:50,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:50,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:50,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:50,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520373151] [2024-11-20 22:00:50,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520373151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:50,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:50,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:50,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642602602] [2024-11-20 22:00:50,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:50,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:50,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:50,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:50,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:50,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 46 [2024-11-20 22:00:50,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 74 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-20 22:00:50,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:50,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 46 [2024-11-20 22:00:50,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:50,336 INFO L124 PetriNetUnfolderBase]: 312/603 cut-off events. [2024-11-20 22:00:50,336 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 22:00:50,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1161 conditions, 603 events. 312/603 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 4014 event pairs, 269 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 1155. Up to 533 conditions per place. [2024-11-20 22:00:50,343 INFO L140 encePairwiseOnDemand]: 43/46 looper letters, 23 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2024-11-20 22:00:50,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 32 transitions, 118 flow [2024-11-20 22:00:50,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:50,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:50,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 56 transitions. [2024-11-20 22:00:50,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4057971014492754 [2024-11-20 22:00:50,346 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 74 flow. Second operand 3 states and 56 transitions. [2024-11-20 22:00:50,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 32 transitions, 118 flow [2024-11-20 22:00:50,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 32 transitions, 117 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:00:50,348 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 71 flow [2024-11-20 22:00:50,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2024-11-20 22:00:50,349 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -8 predicate places. [2024-11-20 22:00:50,349 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 71 flow [2024-11-20 22:00:50,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-20 22:00:50,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:50,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:50,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 22:00:50,351 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:50,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:50,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1703172716, now seen corresponding path program 1 times [2024-11-20 22:00:50,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:50,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61774506] [2024-11-20 22:00:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:50,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:50,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:50,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61774506] [2024-11-20 22:00:50,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61774506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:50,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:50,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:50,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658624175] [2024-11-20 22:00:50,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:50,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:50,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:50,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:50,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:50,451 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-20 22:00:50,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:50,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:50,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-20 22:00:50,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:50,549 INFO L124 PetriNetUnfolderBase]: 396/638 cut-off events. [2024-11-20 22:00:50,549 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 22:00:50,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1217 conditions, 638 events. 396/638 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 3301 event pairs, 189 based on Foata normal form. 0/249 useless extension candidates. Maximal degree in co-relation 1210. Up to 557 conditions per place. [2024-11-20 22:00:50,554 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 20 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2024-11-20 22:00:50,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 31 transitions, 111 flow [2024-11-20 22:00:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:50,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:50,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-20 22:00:50,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2024-11-20 22:00:50,557 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 71 flow. Second operand 3 states and 70 transitions. [2024-11-20 22:00:50,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 31 transitions, 111 flow [2024-11-20 22:00:50,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 31 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:00:50,558 INFO L231 Difference]: Finished difference. Result has 37 places, 31 transitions, 70 flow [2024-11-20 22:00:50,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=37, PETRI_TRANSITIONS=31} [2024-11-20 22:00:50,559 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -8 predicate places. [2024-11-20 22:00:50,560 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 31 transitions, 70 flow [2024-11-20 22:00:50,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:50,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:50,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:50,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 22:00:50,560 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:50,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:50,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1703172721, now seen corresponding path program 1 times [2024-11-20 22:00:50,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:50,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922849587] [2024-11-20 22:00:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:50,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:50,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:50,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:50,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922849587] [2024-11-20 22:00:50,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922849587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:50,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:50,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:50,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385893599] [2024-11-20 22:00:50,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:50,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:50,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:50,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-20 22:00:50,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:50,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:50,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-20 22:00:50,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:50,752 INFO L124 PetriNetUnfolderBase]: 489/869 cut-off events. [2024-11-20 22:00:50,753 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 22:00:50,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1622 conditions, 869 events. 489/869 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 5289 event pairs, 95 based on Foata normal form. 0/395 useless extension candidates. Maximal degree in co-relation 1614. Up to 505 conditions per place. [2024-11-20 22:00:50,760 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 35 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-20 22:00:50,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 48 transitions, 183 flow [2024-11-20 22:00:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:50,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:50,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-20 22:00:50,762 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6376811594202898 [2024-11-20 22:00:50,762 INFO L175 Difference]: Start difference. First operand has 37 places, 31 transitions, 70 flow. Second operand 3 states and 88 transitions. [2024-11-20 22:00:50,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 48 transitions, 183 flow [2024-11-20 22:00:50,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 48 transitions, 182 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:00:50,764 INFO L231 Difference]: Finished difference. Result has 39 places, 33 transitions, 90 flow [2024-11-20 22:00:50,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=39, PETRI_TRANSITIONS=33} [2024-11-20 22:00:50,766 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -6 predicate places. [2024-11-20 22:00:50,766 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 33 transitions, 90 flow [2024-11-20 22:00:50,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:50,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:50,767 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:50,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 22:00:50,768 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:50,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:50,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1703172715, now seen corresponding path program 1 times [2024-11-20 22:00:50,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:50,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896668764] [2024-11-20 22:00:50,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:50,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:50,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:50,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896668764] [2024-11-20 22:00:50,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896668764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:50,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:50,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:50,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013672394] [2024-11-20 22:00:50,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:50,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:50,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:50,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:50,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:50,828 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-20 22:00:50,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 33 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:50,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:50,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-20 22:00:50,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:50,930 INFO L124 PetriNetUnfolderBase]: 322/604 cut-off events. [2024-11-20 22:00:50,930 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-20 22:00:50,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1286 conditions, 604 events. 322/604 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 3679 event pairs, 134 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 1276. Up to 359 conditions per place. [2024-11-20 22:00:50,935 INFO L140 encePairwiseOnDemand]: 36/46 looper letters, 33 selfloop transitions, 9 changer transitions 0/52 dead transitions. [2024-11-20 22:00:50,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 229 flow [2024-11-20 22:00:50,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:50,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 88 transitions. [2024-11-20 22:00:50,938 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6376811594202898 [2024-11-20 22:00:50,938 INFO L175 Difference]: Start difference. First operand has 39 places, 33 transitions, 90 flow. Second operand 3 states and 88 transitions. [2024-11-20 22:00:50,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 229 flow [2024-11-20 22:00:50,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 52 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:00:50,940 INFO L231 Difference]: Finished difference. Result has 42 places, 41 transitions, 165 flow [2024-11-20 22:00:50,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=165, PETRI_PLACES=42, PETRI_TRANSITIONS=41} [2024-11-20 22:00:50,941 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -3 predicate places. [2024-11-20 22:00:50,942 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 41 transitions, 165 flow [2024-11-20 22:00:50,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:50,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:50,943 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:50,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 22:00:50,943 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:50,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:50,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1703172714, now seen corresponding path program 1 times [2024-11-20 22:00:50,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:50,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70076520] [2024-11-20 22:00:50,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:50,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:51,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:51,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70076520] [2024-11-20 22:00:51,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70076520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:51,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:51,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:51,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797200316] [2024-11-20 22:00:51,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:51,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:51,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:51,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:51,003 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-20 22:00:51,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 41 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:51,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:51,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-20 22:00:51,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:51,066 INFO L124 PetriNetUnfolderBase]: 159/323 cut-off events. [2024-11-20 22:00:51,066 INFO L125 PetriNetUnfolderBase]: For 294/294 co-relation queries the response was YES. [2024-11-20 22:00:51,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 323 events. 159/323 cut-off events. For 294/294 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1742 event pairs, 95 based on Foata normal form. 52/256 useless extension candidates. Maximal degree in co-relation 761. Up to 260 conditions per place. [2024-11-20 22:00:51,069 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 20 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2024-11-20 22:00:51,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 31 transitions, 149 flow [2024-11-20 22:00:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-20 22:00:51,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-20 22:00:51,072 INFO L175 Difference]: Start difference. First operand has 42 places, 41 transitions, 165 flow. Second operand 3 states and 69 transitions. [2024-11-20 22:00:51,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 31 transitions, 149 flow [2024-11-20 22:00:51,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 31 transitions, 141 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:00:51,074 INFO L231 Difference]: Finished difference. Result has 38 places, 31 transitions, 101 flow [2024-11-20 22:00:51,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=38, PETRI_TRANSITIONS=31} [2024-11-20 22:00:51,074 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -7 predicate places. [2024-11-20 22:00:51,075 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 31 transitions, 101 flow [2024-11-20 22:00:51,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-20 22:00:51,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:51,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:51,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 22:00:51,075 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:51,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:51,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1334758857, now seen corresponding path program 1 times [2024-11-20 22:00:51,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:51,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523672569] [2024-11-20 22:00:51,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:51,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:51,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:51,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523672569] [2024-11-20 22:00:51,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523672569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:51,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:51,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:51,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263861146] [2024-11-20 22:00:51,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:51,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:51,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:51,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:51,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-20 22:00:51,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 31 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-20 22:00:51,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:51,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-20 22:00:51,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:51,225 INFO L124 PetriNetUnfolderBase]: 173/391 cut-off events. [2024-11-20 22:00:51,225 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-11-20 22:00:51,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 391 events. 173/391 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2265 event pairs, 52 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 832. Up to 160 conditions per place. [2024-11-20 22:00:51,228 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 31 selfloop transitions, 4 changer transitions 0/45 dead transitions. [2024-11-20 22:00:51,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 45 transitions, 222 flow [2024-11-20 22:00:51,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:51,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-11-20 22:00:51,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5652173913043478 [2024-11-20 22:00:51,229 INFO L175 Difference]: Start difference. First operand has 38 places, 31 transitions, 101 flow. Second operand 3 states and 78 transitions. [2024-11-20 22:00:51,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 45 transitions, 222 flow [2024-11-20 22:00:51,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 45 transitions, 221 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 22:00:51,232 INFO L231 Difference]: Finished difference. Result has 41 places, 34 transitions, 138 flow [2024-11-20 22:00:51,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2024-11-20 22:00:51,233 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -4 predicate places. [2024-11-20 22:00:51,234 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 138 flow [2024-11-20 22:00:51,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-20 22:00:51,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:51,234 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:51,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 22:00:51,234 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:51,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:51,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1334758862, now seen corresponding path program 1 times [2024-11-20 22:00:51,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:51,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346100928] [2024-11-20 22:00:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:51,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:51,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:51,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:51,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346100928] [2024-11-20 22:00:51,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346100928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:51,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:51,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 22:00:51,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438384940] [2024-11-20 22:00:51,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:51,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:51,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:51,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:51,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:51,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-20 22:00:51,280 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-20 22:00:51,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:51,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-20 22:00:51,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:51,333 INFO L124 PetriNetUnfolderBase]: 137/305 cut-off events. [2024-11-20 22:00:51,334 INFO L125 PetriNetUnfolderBase]: For 298/298 co-relation queries the response was YES. [2024-11-20 22:00:51,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 305 events. 137/305 cut-off events. For 298/298 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1763 event pairs, 107 based on Foata normal form. 12/218 useless extension candidates. Maximal degree in co-relation 720. Up to 242 conditions per place. [2024-11-20 22:00:51,336 INFO L140 encePairwiseOnDemand]: 44/46 looper letters, 19 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2024-11-20 22:00:51,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 30 transitions, 150 flow [2024-11-20 22:00:51,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2024-11-20 22:00:51,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47101449275362317 [2024-11-20 22:00:51,338 INFO L175 Difference]: Start difference. First operand has 41 places, 34 transitions, 138 flow. Second operand 3 states and 65 transitions. [2024-11-20 22:00:51,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 30 transitions, 150 flow [2024-11-20 22:00:51,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:00:51,341 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 108 flow [2024-11-20 22:00:51,342 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2024-11-20 22:00:51,342 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -5 predicate places. [2024-11-20 22:00:51,342 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 108 flow [2024-11-20 22:00:51,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2024-11-20 22:00:51,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:51,344 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-20 22:00:51,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 22:00:51,344 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:51,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:51,344 INFO L85 PathProgramCache]: Analyzing trace with hash -21286467, now seen corresponding path program 1 times [2024-11-20 22:00:51,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:51,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091407566] [2024-11-20 22:00:51,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:51,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:51,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:51,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:51,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091407566] [2024-11-20 22:00:51,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091407566] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:51,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277451633] [2024-11-20 22:00:51,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:51,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:51,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:51,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:00:51,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 22:00:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:51,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:00:51,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:51,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 22:00:51,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 22:00:51,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277451633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:00:51,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:00:51,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-11-20 22:00:51,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052359152] [2024-11-20 22:00:51,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:00:51,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 22:00:51,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:51,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 22:00:51,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-20 22:00:51,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2024-11-20 22:00:51,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 108 flow. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-11-20 22:00:51,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:51,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2024-11-20 22:00:51,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:51,813 INFO L124 PetriNetUnfolderBase]: 530/981 cut-off events. [2024-11-20 22:00:51,813 INFO L125 PetriNetUnfolderBase]: For 246/246 co-relation queries the response was YES. [2024-11-20 22:00:51,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2215 conditions, 981 events. 530/981 cut-off events. For 246/246 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 5464 event pairs, 111 based on Foata normal form. 36/870 useless extension candidates. Maximal degree in co-relation 2199. Up to 257 conditions per place. [2024-11-20 22:00:51,819 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 55 selfloop transitions, 5 changer transitions 4/70 dead transitions. [2024-11-20 22:00:51,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 70 transitions, 345 flow [2024-11-20 22:00:51,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:00:51,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:00:51,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 112 transitions. [2024-11-20 22:00:51,820 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4057971014492754 [2024-11-20 22:00:51,820 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 108 flow. Second operand 6 states and 112 transitions. [2024-11-20 22:00:51,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 70 transitions, 345 flow [2024-11-20 22:00:51,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 70 transitions, 339 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:00:51,822 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 97 flow [2024-11-20 22:00:51,822 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2024-11-20 22:00:51,823 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -4 predicate places. [2024-11-20 22:00:51,823 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 97 flow [2024-11-20 22:00:51,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 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) [2024-11-20 22:00:51,823 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:51,823 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:51,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 22:00:52,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:52,028 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-20 22:00:52,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:52,029 INFO L85 PathProgramCache]: Analyzing trace with hash -732747009, now seen corresponding path program 1 times [2024-11-20 22:00:52,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:52,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106312606] [2024-11-20 22:00:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:52,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:52,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:52,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106312606] [2024-11-20 22:00:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106312606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:52,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404437205] [2024-11-20 22:00:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:52,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:52,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:52,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:00:52,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 22:00:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:52,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 22:00:52,138 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 22:00:52,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-20 22:00:52,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404437205] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:00:52,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:00:52,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 6 [2024-11-20 22:00:52,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306857290] [2024-11-20 22:00:52,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:00:52,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 22:00:52,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:52,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 22:00:52,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 22:00:52,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 46 [2024-11-20 22:00:52,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 97 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-20 22:00:52,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:52,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 46 [2024-11-20 22:00:52,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:52,448 INFO L124 PetriNetUnfolderBase]: 594/1159 cut-off events. [2024-11-20 22:00:52,448 INFO L125 PetriNetUnfolderBase]: For 494/524 co-relation queries the response was YES. [2024-11-20 22:00:52,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2518 conditions, 1159 events. 594/1159 cut-off events. For 494/524 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6587 event pairs, 147 based on Foata normal form. 0/1024 useless extension candidates. Maximal degree in co-relation 2501. Up to 292 conditions per place. [2024-11-20 22:00:52,452 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-11-20 22:00:52,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 54 transitions, 284 flow [2024-11-20 22:00:52,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 22:00:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 22:00:52,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 91 transitions. [2024-11-20 22:00:52,454 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32971014492753625 [2024-11-20 22:00:52,454 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 97 flow. Second operand 6 states and 91 transitions. [2024-11-20 22:00:52,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 54 transitions, 284 flow [2024-11-20 22:00:52,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 54 transitions, 256 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-20 22:00:52,455 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2024-11-20 22:00:52,455 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2024-11-20 22:00:52,456 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, -7 predicate places. [2024-11-20 22:00:52,457 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2024-11-20 22:00:52,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2024-11-20 22:00:52,460 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 42 remaining) [2024-11-20 22:00:52,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 42 remaining) [2024-11-20 22:00:52,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 42 remaining) [2024-11-20 22:00:52,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 42 remaining) [2024-11-20 22:00:52,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 42 remaining) [2024-11-20 22:00:52,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 42 remaining) [2024-11-20 22:00:52,461 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 42 remaining) [2024-11-20 22:00:52,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 42 remaining) [2024-11-20 22:00:52,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 42 remaining) [2024-11-20 22:00:52,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 42 remaining) [2024-11-20 22:00:52,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 42 remaining) [2024-11-20 22:00:52,462 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 42 remaining) [2024-11-20 22:00:52,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 42 remaining) [2024-11-20 22:00:52,463 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 42 remaining) [2024-11-20 22:00:52,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 42 remaining) [2024-11-20 22:00:52,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 42 remaining) [2024-11-20 22:00:52,464 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 42 remaining) [2024-11-20 22:00:52,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 42 remaining) [2024-11-20 22:00:52,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 42 remaining) [2024-11-20 22:00:52,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 42 remaining) [2024-11-20 22:00:52,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 42 remaining) [2024-11-20 22:00:52,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 42 remaining) [2024-11-20 22:00:52,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 42 remaining) [2024-11-20 22:00:52,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 42 remaining) [2024-11-20 22:00:52,470 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 42 remaining) [2024-11-20 22:00:52,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 22:00:52,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-20 22:00:52,672 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:52,677 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-20 22:00:52,677 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-20 22:00:52,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:00:52 BasicIcfg [2024-11-20 22:00:52,682 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-20 22:00:52,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-20 22:00:52,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-20 22:00:52,682 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-20 22:00:52,683 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:00:49" (3/4) ... [2024-11-20 22:00:52,684 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-20 22:00:52,687 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-20 22:00:52,687 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-20 22:00:52,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2024-11-20 22:00:52,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-20 22:00:52,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-20 22:00:52,691 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-20 22:00:52,768 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-20 22:00:52,768 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-20 22:00:52,768 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-20 22:00:52,769 INFO L158 Benchmark]: Toolchain (without parser) took 4506.42ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 106.5MB in the beginning and 116.2MB in the end (delta: -9.8MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2024-11-20 22:00:52,769 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 161.5MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:00:52,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.20ms. Allocated memory is still 161.5MB. Free memory was 106.2MB in the beginning and 93.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-20 22:00:52,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.12ms. Allocated memory is still 161.5MB. Free memory was 93.0MB in the beginning and 91.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:00:52,770 INFO L158 Benchmark]: Boogie Preprocessor took 52.83ms. Allocated memory is still 161.5MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-20 22:00:52,770 INFO L158 Benchmark]: RCFGBuilder took 685.93ms. Allocated memory is still 161.5MB. Free memory was 89.7MB in the beginning and 46.9MB in the end (delta: 42.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-20 22:00:52,770 INFO L158 Benchmark]: TraceAbstraction took 3334.78ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 46.3MB in the beginning and 120.4MB in the end (delta: -74.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 22:00:52,771 INFO L158 Benchmark]: Witness Printer took 86.32ms. Allocated memory is still 213.9MB. Free memory was 120.4MB in the beginning and 116.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-20 22:00:52,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 161.5MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.20ms. Allocated memory is still 161.5MB. Free memory was 106.2MB in the beginning and 93.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.12ms. Allocated memory is still 161.5MB. Free memory was 93.0MB in the beginning and 91.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.83ms. Allocated memory is still 161.5MB. Free memory was 91.8MB in the beginning and 89.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.93ms. Allocated memory is still 161.5MB. Free memory was 89.7MB in the beginning and 46.9MB in the end (delta: 42.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3334.78ms. Allocated memory was 161.5MB in the beginning and 213.9MB in the end (delta: 52.4MB). Free memory was 46.3MB in the beginning and 120.4MB in the end (delta: -74.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 86.32ms. Allocated memory is still 213.9MB. Free memory was 120.4MB in the beginning and 116.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: 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 5 procedures, 79 locations, 42 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: 3.2s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 433 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 444 IncrementalHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 26 mSDtfsCounter, 444 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred in iteration=5, InterpolantAutomatonStates: 36, 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, 0.8s InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 447 SizeOfPredicates, 4 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 12/24 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 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-20 22:00:52,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE