./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-bakery-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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-bakery-2.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 1cae81f1fa2e32e73e0569957bc583bbf3478ffc71be87871acb9920c44bcfd4 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-15 00:00:22,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 00:00:22,536 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-15 00:00:22,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 00:00:22,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 00:00:22,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 00:00:22,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 00:00:22,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 00:00:22,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 00:00:22,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 00:00:22,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-15 00:00:22,575 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-15 00:00:22,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 00:00:22,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 00:00:22,576 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 00:00:22,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 00:00:22,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 00:00:22,578 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 00:00:22,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 00:00:22,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 00:00:22,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 00:00:22,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 00:00:22,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 00:00:22,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 00:00:22,583 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 00:00:22,584 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-15 00:00:22,584 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-15 00:00:22,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 00:00:22,584 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 00:00:22,584 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 00:00:22,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 00:00:22,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 00:00:22,585 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 00:00:22,585 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 00:00:22,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 00:00:22,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-15 00:00:22,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-15 00:00:22,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-15 00:00:22,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-15 00:00:22,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-15 00:00:22,586 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-15 00:00:22,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-15 00:00:22,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-15 00:00:22,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-15 00:00:22,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cae81f1fa2e32e73e0569957bc583bbf3478ffc71be87871acb9920c44bcfd4 [2024-10-15 00:00:22,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 00:00:22,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 00:00:22,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 00:00:22,873 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 00:00:22,873 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 00:00:22,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-10-15 00:00:24,360 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 00:00:24,551 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 00:00:24,554 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-10-15 00:00:24,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bd9bc2fa/48e800e8ab784a53b964e53f255b6fec/FLAGbd5b68a43 [2024-10-15 00:00:24,931 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bd9bc2fa/48e800e8ab784a53b964e53f255b6fec [2024-10-15 00:00:24,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 00:00:24,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-15 00:00:24,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 00:00:24,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 00:00:24,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 00:00:24,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:00:24" (1/1) ... [2024-10-15 00:00:24,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d8820f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:24, skipping insertion in model container [2024-10-15 00:00:24,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 12:00:24" (1/1) ... [2024-10-15 00:00:24,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 00:00:25,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:00:25,164 INFO L200 MainTranslator]: Completed pre-run [2024-10-15 00:00:25,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 00:00:25,217 INFO L204 MainTranslator]: Completed translation [2024-10-15 00:00:25,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25 WrapperNode [2024-10-15 00:00:25,219 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 00:00:25,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 00:00:25,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 00:00:25,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 00:00:25,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,263 INFO L138 Inliner]: procedures = 20, calls = 51, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 156 [2024-10-15 00:00:25,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 00:00:25,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 00:00:25,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 00:00:25,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 00:00:25,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,300 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-15 00:00:25,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,304 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,310 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,311 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 00:00:25,318 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 00:00:25,318 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 00:00:25,318 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 00:00:25,319 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (1/1) ... [2024-10-15 00:00:25,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 00:00:25,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-15 00:00:25,354 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) [2024-10-15 00:00:25,356 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 [2024-10-15 00:00:25,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 00:00:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-15 00:00:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-15 00:00:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-15 00:00:25,392 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-15 00:00:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-15 00:00:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-15 00:00:25,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-15 00:00:25,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 00:00:25,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 00:00:25,395 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-15 00:00:25,475 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 00:00:25,477 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 00:00:25,724 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-15 00:00:25,724 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 00:00:25,970 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 00:00:25,970 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-15 00:00:25,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:00:25 BoogieIcfgContainer [2024-10-15 00:00:25,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 00:00:25,974 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-15 00:00:25,974 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-15 00:00:25,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-15 00:00:25,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 12:00:24" (1/3) ... [2024-10-15 00:00:25,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e10868b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:00:25, skipping insertion in model container [2024-10-15 00:00:25,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 12:00:25" (2/3) ... [2024-10-15 00:00:25,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e10868b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 12:00:25, skipping insertion in model container [2024-10-15 00:00:25,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:00:25" (3/3) ... [2024-10-15 00:00:25,980 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-10-15 00:00:25,998 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-15 00:00:25,999 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-15 00:00:25,999 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-15 00:00:26,047 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-15 00:00:26,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 40 transitions, 94 flow [2024-10-15 00:00:26,108 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-10-15 00:00:26,109 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-15 00:00:26,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 38 events. 0/38 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 57 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-15 00:00:26,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 40 transitions, 94 flow [2024-10-15 00:00:26,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 36 transitions, 81 flow [2024-10-15 00:00:26,122 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-15 00:00:26,128 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;@7b8d0287, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-15 00:00:26,128 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-15 00:00:26,132 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-15 00:00:26,133 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-10-15 00:00:26,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-15 00:00:26,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:26,134 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-15 00:00:26,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:26,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1641278971, now seen corresponding path program 1 times [2024-10-15 00:00:26,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:26,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443221226] [2024-10-15 00:00:26,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:26,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:26,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:26,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443221226] [2024-10-15 00:00:26,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443221226] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:26,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:26,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:00:26,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037520197] [2024-10-15 00:00:26,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:26,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-15 00:00:26,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:26,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:00:26,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:00:26,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-10-15 00:00:26,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 81 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:26,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:26,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-10-15 00:00:26,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:26,773 INFO L124 PetriNetUnfolderBase]: 346/679 cut-off events. [2024-10-15 00:00:26,774 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-10-15 00:00:26,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 679 events. 346/679 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3636 event pairs, 85 based on Foata normal form. 0/509 useless extension candidates. Maximal degree in co-relation 1266. Up to 450 conditions per place. [2024-10-15 00:00:26,786 INFO L140 encePairwiseOnDemand]: 36/40 looper letters, 34 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-10-15 00:00:26,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 46 transitions, 178 flow [2024-10-15 00:00:26,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:00:26,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-15 00:00:26,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 83 transitions. [2024-10-15 00:00:26,799 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.51875 [2024-10-15 00:00:26,801 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 81 flow. Second operand 4 states and 83 transitions. [2024-10-15 00:00:26,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 46 transitions, 178 flow [2024-10-15 00:00:26,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 46 transitions, 171 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-15 00:00:26,810 INFO L231 Difference]: Finished difference. Result has 42 places, 35 transitions, 80 flow [2024-10-15 00:00:26,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=42, PETRI_TRANSITIONS=35} [2024-10-15 00:00:26,824 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, -1 predicate places. [2024-10-15 00:00:26,824 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 35 transitions, 80 flow [2024-10-15 00:00:26,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:26,824 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:26,824 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-15 00:00:26,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-15 00:00:26,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:26,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:26,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1641278970, now seen corresponding path program 1 times [2024-10-15 00:00:26,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:26,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532382857] [2024-10-15 00:00:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:26,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:26,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:26,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532382857] [2024-10-15 00:00:26,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532382857] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:26,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:26,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:00:26,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590950987] [2024-10-15 00:00:26,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:26,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-15 00:00:26,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:26,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:00:26,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:00:26,993 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-15 00:00:26,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:26,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:26,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-15 00:00:26,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:27,108 INFO L124 PetriNetUnfolderBase]: 314/632 cut-off events. [2024-10-15 00:00:27,108 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-15 00:00:27,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1242 conditions, 632 events. 314/632 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3328 event pairs, 111 based on Foata normal form. 0/484 useless extension candidates. Maximal degree in co-relation 911. Up to 389 conditions per place. [2024-10-15 00:00:27,115 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 38 selfloop transitions, 6 changer transitions 0/54 dead transitions. [2024-10-15 00:00:27,115 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 210 flow [2024-10-15 00:00:27,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-15 00:00:27,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-15 00:00:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 96 transitions. [2024-10-15 00:00:27,117 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-10-15 00:00:27,117 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 80 flow. Second operand 4 states and 96 transitions. [2024-10-15 00:00:27,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 210 flow [2024-10-15 00:00:27,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 204 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-15 00:00:27,120 INFO L231 Difference]: Finished difference. Result has 44 places, 39 transitions, 115 flow [2024-10-15 00:00:27,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=115, PETRI_PLACES=44, PETRI_TRANSITIONS=39} [2024-10-15 00:00:27,121 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 1 predicate places. [2024-10-15 00:00:27,121 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 39 transitions, 115 flow [2024-10-15 00:00:27,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:27,121 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:27,121 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:27,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-15 00:00:27,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:27,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:27,122 INFO L85 PathProgramCache]: Analyzing trace with hash 887004801, now seen corresponding path program 1 times [2024-10-15 00:00:27,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:27,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994225480] [2024-10-15 00:00:27,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:27,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:27,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:27,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994225480] [2024-10-15 00:00:27,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994225480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:27,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:27,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:00:27,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310405218] [2024-10-15 00:00:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:27,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-15 00:00:27,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:27,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:00:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:00:27,204 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-15 00:00:27,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 39 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:27,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:27,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-15 00:00:27,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:27,393 INFO L124 PetriNetUnfolderBase]: 249/529 cut-off events. [2024-10-15 00:00:27,394 INFO L125 PetriNetUnfolderBase]: For 113/124 co-relation queries the response was YES. [2024-10-15 00:00:27,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1160 conditions, 529 events. 249/529 cut-off events. For 113/124 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2877 event pairs, 98 based on Foata normal form. 11/449 useless extension candidates. Maximal degree in co-relation 648. Up to 190 conditions per place. [2024-10-15 00:00:27,403 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 50 selfloop transitions, 4 changer transitions 7/73 dead transitions. [2024-10-15 00:00:27,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 331 flow [2024-10-15 00:00:27,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-15 00:00:27,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-15 00:00:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-10-15 00:00:27,408 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63 [2024-10-15 00:00:27,408 INFO L175 Difference]: Start difference. First operand has 44 places, 39 transitions, 115 flow. Second operand 5 states and 126 transitions. [2024-10-15 00:00:27,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 331 flow [2024-10-15 00:00:27,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 73 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-15 00:00:27,417 INFO L231 Difference]: Finished difference. Result has 51 places, 40 transitions, 141 flow [2024-10-15 00:00:27,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=51, PETRI_TRANSITIONS=40} [2024-10-15 00:00:27,422 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 8 predicate places. [2024-10-15 00:00:27,422 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 40 transitions, 141 flow [2024-10-15 00:00:27,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:27,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:27,422 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:27,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-15 00:00:27,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:27,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:27,425 INFO L85 PathProgramCache]: Analyzing trace with hash 806810470, now seen corresponding path program 1 times [2024-10-15 00:00:27,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:27,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489621747] [2024-10-15 00:00:27,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:27,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:27,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:27,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489621747] [2024-10-15 00:00:27,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489621747] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:27,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:27,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-15 00:00:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591523611] [2024-10-15 00:00:27,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:27,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 00:00:27,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:27,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 00:00:27,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-15 00:00:27,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 40 [2024-10-15 00:00:27,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 40 transitions, 141 flow. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:27,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:27,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 40 [2024-10-15 00:00:27,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:27,768 INFO L124 PetriNetUnfolderBase]: 381/766 cut-off events. [2024-10-15 00:00:27,769 INFO L125 PetriNetUnfolderBase]: For 370/394 co-relation queries the response was YES. [2024-10-15 00:00:27,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1841 conditions, 766 events. 381/766 cut-off events. For 370/394 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4078 event pairs, 81 based on Foata normal form. 24/726 useless extension candidates. Maximal degree in co-relation 1371. Up to 436 conditions per place. [2024-10-15 00:00:27,774 INFO L140 encePairwiseOnDemand]: 32/40 looper letters, 49 selfloop transitions, 9 changer transitions 0/67 dead transitions. [2024-10-15 00:00:27,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 67 transitions, 342 flow [2024-10-15 00:00:27,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-15 00:00:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-15 00:00:27,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2024-10-15 00:00:27,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.555 [2024-10-15 00:00:27,778 INFO L175 Difference]: Start difference. First operand has 51 places, 40 transitions, 141 flow. Second operand 5 states and 111 transitions. [2024-10-15 00:00:27,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 67 transitions, 342 flow [2024-10-15 00:00:27,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 67 transitions, 328 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-15 00:00:27,782 INFO L231 Difference]: Finished difference. Result has 55 places, 44 transitions, 187 flow [2024-10-15 00:00:27,783 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=55, PETRI_TRANSITIONS=44} [2024-10-15 00:00:27,784 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-10-15 00:00:27,785 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 44 transitions, 187 flow [2024-10-15 00:00:27,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:27,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:27,785 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:27,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-15 00:00:27,786 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:27,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash -131613075, now seen corresponding path program 1 times [2024-10-15 00:00:27,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:27,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175069770] [2024-10-15 00:00:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:27,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:27,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:27,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175069770] [2024-10-15 00:00:27,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175069770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:27,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:27,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-15 00:00:27,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638814685] [2024-10-15 00:00:27,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:27,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-15 00:00:27,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-15 00:00:27,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-15 00:00:27,948 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-10-15 00:00:27,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 44 transitions, 187 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:27,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:27,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-10-15 00:00:27,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:28,040 INFO L124 PetriNetUnfolderBase]: 336/693 cut-off events. [2024-10-15 00:00:28,040 INFO L125 PetriNetUnfolderBase]: For 422/446 co-relation queries the response was YES. [2024-10-15 00:00:28,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1771 conditions, 693 events. 336/693 cut-off events. For 422/446 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3750 event pairs, 91 based on Foata normal form. 37/673 useless extension candidates. Maximal degree in co-relation 1498. Up to 564 conditions per place. [2024-10-15 00:00:28,046 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 38 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2024-10-15 00:00:28,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 307 flow [2024-10-15 00:00:28,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-15 00:00:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-15 00:00:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 92 transitions. [2024-10-15 00:00:28,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46 [2024-10-15 00:00:28,047 INFO L175 Difference]: Start difference. First operand has 55 places, 44 transitions, 187 flow. Second operand 5 states and 92 transitions. [2024-10-15 00:00:28,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 307 flow [2024-10-15 00:00:28,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 298 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-10-15 00:00:28,050 INFO L231 Difference]: Finished difference. Result has 59 places, 45 transitions, 209 flow [2024-10-15 00:00:28,050 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=209, PETRI_PLACES=59, PETRI_TRANSITIONS=45} [2024-10-15 00:00:28,053 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 16 predicate places. [2024-10-15 00:00:28,054 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 45 transitions, 209 flow [2024-10-15 00:00:28,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:28,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:28,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-15 00:00:28,054 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:28,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:28,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2072005030, now seen corresponding path program 1 times [2024-10-15 00:00:28,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:28,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962301211] [2024-10-15 00:00:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:28,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:28,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:28,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:28,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962301211] [2024-10-15 00:00:28,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962301211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:28,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:28,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-15 00:00:28,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392541456] [2024-10-15 00:00:28,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:28,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-15 00:00:28,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:28,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-15 00:00:28,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-15 00:00:28,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 40 [2024-10-15 00:00:28,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 45 transitions, 209 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:28,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 40 [2024-10-15 00:00:28,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:28,325 INFO L124 PetriNetUnfolderBase]: 414/868 cut-off events. [2024-10-15 00:00:28,326 INFO L125 PetriNetUnfolderBase]: For 517/531 co-relation queries the response was YES. [2024-10-15 00:00:28,328 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 868 events. 414/868 cut-off events. For 517/531 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 5002 event pairs, 101 based on Foata normal form. 34/837 useless extension candidates. Maximal degree in co-relation 1353. Up to 522 conditions per place. [2024-10-15 00:00:28,332 INFO L140 encePairwiseOnDemand]: 33/40 looper letters, 50 selfloop transitions, 11 changer transitions 0/72 dead transitions. [2024-10-15 00:00:28,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 72 transitions, 411 flow [2024-10-15 00:00:28,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-15 00:00:28,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-15 00:00:28,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2024-10-15 00:00:28,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.545 [2024-10-15 00:00:28,334 INFO L175 Difference]: Start difference. First operand has 59 places, 45 transitions, 209 flow. Second operand 5 states and 109 transitions. [2024-10-15 00:00:28,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 72 transitions, 411 flow [2024-10-15 00:00:28,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 72 transitions, 406 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-15 00:00:28,341 INFO L231 Difference]: Finished difference. Result has 63 places, 49 transitions, 258 flow [2024-10-15 00:00:28,341 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=258, PETRI_PLACES=63, PETRI_TRANSITIONS=49} [2024-10-15 00:00:28,342 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-10-15 00:00:28,343 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 49 transitions, 258 flow [2024-10-15 00:00:28,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,343 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:28,343 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:28,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-15 00:00:28,344 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:28,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:28,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1481121164, now seen corresponding path program 1 times [2024-10-15 00:00:28,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:28,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081232487] [2024-10-15 00:00:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:28,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:28,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:28,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081232487] [2024-10-15 00:00:28,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081232487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:28,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:28,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-15 00:00:28,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20880428] [2024-10-15 00:00:28,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:28,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-15 00:00:28,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:28,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-15 00:00:28,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-15 00:00:28,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 40 [2024-10-15 00:00:28,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 49 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:28,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 40 [2024-10-15 00:00:28,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:28,512 INFO L124 PetriNetUnfolderBase]: 309/682 cut-off events. [2024-10-15 00:00:28,513 INFO L125 PetriNetUnfolderBase]: For 592/617 co-relation queries the response was YES. [2024-10-15 00:00:28,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 682 events. 309/682 cut-off events. For 592/617 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 3857 event pairs, 116 based on Foata normal form. 59/692 useless extension candidates. Maximal degree in co-relation 1191. Up to 195 conditions per place. [2024-10-15 00:00:28,517 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 43 selfloop transitions, 4 changer transitions 3/70 dead transitions. [2024-10-15 00:00:28,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 70 transitions, 434 flow [2024-10-15 00:00:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-15 00:00:28,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-15 00:00:28,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 108 transitions. [2024-10-15 00:00:28,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54 [2024-10-15 00:00:28,519 INFO L175 Difference]: Start difference. First operand has 63 places, 49 transitions, 258 flow. Second operand 5 states and 108 transitions. [2024-10-15 00:00:28,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 70 transitions, 434 flow [2024-10-15 00:00:28,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 70 transitions, 430 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-10-15 00:00:28,523 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 280 flow [2024-10-15 00:00:28,523 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-10-15 00:00:28,523 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 27 predicate places. [2024-10-15 00:00:28,524 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 280 flow [2024-10-15 00:00:28,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,524 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:28,524 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:28,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-15 00:00:28,524 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:28,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:28,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1820119940, now seen corresponding path program 1 times [2024-10-15 00:00:28,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:28,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721662144] [2024-10-15 00:00:28,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:28,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:28,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:28,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721662144] [2024-10-15 00:00:28,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721662144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:28,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:28,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-15 00:00:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545749952] [2024-10-15 00:00:28,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:28,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 00:00:28,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:28,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 00:00:28,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-15 00:00:28,613 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-15 00:00:28,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:28,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-15 00:00:28,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:28,783 INFO L124 PetriNetUnfolderBase]: 337/698 cut-off events. [2024-10-15 00:00:28,784 INFO L125 PetriNetUnfolderBase]: For 651/663 co-relation queries the response was YES. [2024-10-15 00:00:28,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2038 conditions, 698 events. 337/698 cut-off events. For 651/663 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3823 event pairs, 127 based on Foata normal form. 12/675 useless extension candidates. Maximal degree in co-relation 1427. Up to 225 conditions per place. [2024-10-15 00:00:28,789 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 48 selfloop transitions, 5 changer transitions 1/72 dead transitions. [2024-10-15 00:00:28,789 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 72 transitions, 460 flow [2024-10-15 00:00:28,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-15 00:00:28,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-15 00:00:28,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-10-15 00:00:28,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-10-15 00:00:28,791 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 280 flow. Second operand 6 states and 116 transitions. [2024-10-15 00:00:28,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 72 transitions, 460 flow [2024-10-15 00:00:28,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 72 transitions, 455 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-15 00:00:28,796 INFO L231 Difference]: Finished difference. Result has 72 places, 49 transitions, 279 flow [2024-10-15 00:00:28,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=279, PETRI_PLACES=72, PETRI_TRANSITIONS=49} [2024-10-15 00:00:28,798 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 29 predicate places. [2024-10-15 00:00:28,799 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 49 transitions, 279 flow [2024-10-15 00:00:28,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:28,799 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:28,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-15 00:00:28,802 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:28,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:28,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1820119939, now seen corresponding path program 1 times [2024-10-15 00:00:28,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:28,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249305732] [2024-10-15 00:00:28,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:28,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:28,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:28,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249305732] [2024-10-15 00:00:28,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249305732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:28,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:28,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-15 00:00:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017205364] [2024-10-15 00:00:28,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:28,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 00:00:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:28,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 00:00:28,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-15 00:00:28,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-15 00:00:28,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 49 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:28,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:28,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-15 00:00:28,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:29,063 INFO L124 PetriNetUnfolderBase]: 325/672 cut-off events. [2024-10-15 00:00:29,063 INFO L125 PetriNetUnfolderBase]: For 720/732 co-relation queries the response was YES. [2024-10-15 00:00:29,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2024 conditions, 672 events. 325/672 cut-off events. For 720/732 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3686 event pairs, 102 based on Foata normal form. 26/663 useless extension candidates. Maximal degree in co-relation 1409. Up to 176 conditions per place. [2024-10-15 00:00:29,067 INFO L140 encePairwiseOnDemand]: 34/40 looper letters, 31 selfloop transitions, 3 changer transitions 30/78 dead transitions. [2024-10-15 00:00:29,067 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 78 transitions, 504 flow [2024-10-15 00:00:29,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-15 00:00:29,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-15 00:00:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 157 transitions. [2024-10-15 00:00:29,069 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4361111111111111 [2024-10-15 00:00:29,069 INFO L175 Difference]: Start difference. First operand has 72 places, 49 transitions, 279 flow. Second operand 9 states and 157 transitions. [2024-10-15 00:00:29,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 78 transitions, 504 flow [2024-10-15 00:00:29,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 78 transitions, 482 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-10-15 00:00:29,072 INFO L231 Difference]: Finished difference. Result has 73 places, 38 transitions, 198 flow [2024-10-15 00:00:29,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=198, PETRI_PLACES=73, PETRI_TRANSITIONS=38} [2024-10-15 00:00:29,073 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 30 predicate places. [2024-10-15 00:00:29,073 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 38 transitions, 198 flow [2024-10-15 00:00:29,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:29,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:29,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:29,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-15 00:00:29,074 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:29,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:29,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1819659140, now seen corresponding path program 1 times [2024-10-15 00:00:29,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:29,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388771322] [2024-10-15 00:00:29,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:29,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:29,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:29,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:29,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388771322] [2024-10-15 00:00:29,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388771322] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:29,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:29,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-15 00:00:29,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132821695] [2024-10-15 00:00:29,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:29,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 00:00:29,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:29,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 00:00:29,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-15 00:00:29,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-15 00:00:29,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 38 transitions, 198 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:29,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:29,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-15 00:00:29,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:29,251 INFO L124 PetriNetUnfolderBase]: 192/413 cut-off events. [2024-10-15 00:00:29,251 INFO L125 PetriNetUnfolderBase]: For 329/336 co-relation queries the response was YES. [2024-10-15 00:00:29,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 413 events. 192/413 cut-off events. For 329/336 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2018 event pairs, 81 based on Foata normal form. 7/398 useless extension candidates. Maximal degree in co-relation 1069. Up to 176 conditions per place. [2024-10-15 00:00:29,254 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 31 selfloop transitions, 4 changer transitions 0/49 dead transitions. [2024-10-15 00:00:29,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 49 transitions, 310 flow [2024-10-15 00:00:29,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-15 00:00:29,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-15 00:00:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-15 00:00:29,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4125 [2024-10-15 00:00:29,258 INFO L175 Difference]: Start difference. First operand has 73 places, 38 transitions, 198 flow. Second operand 6 states and 99 transitions. [2024-10-15 00:00:29,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 49 transitions, 310 flow [2024-10-15 00:00:29,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 271 flow, removed 4 selfloop flow, removed 12 redundant places. [2024-10-15 00:00:29,260 INFO L231 Difference]: Finished difference. Result has 53 places, 37 transitions, 171 flow [2024-10-15 00:00:29,260 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2024-10-15 00:00:29,261 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 10 predicate places. [2024-10-15 00:00:29,261 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 37 transitions, 171 flow [2024-10-15 00:00:29,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:29,261 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-15 00:00:29,261 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:29,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-15 00:00:29,262 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-15 00:00:29,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-15 00:00:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1819659139, now seen corresponding path program 1 times [2024-10-15 00:00:29,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-15 00:00:29,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469281274] [2024-10-15 00:00:29,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-15 00:00:29,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-15 00:00:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-15 00:00:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-15 00:00:29,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-15 00:00:29,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469281274] [2024-10-15 00:00:29,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469281274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-15 00:00:29,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-15 00:00:29,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-15 00:00:29,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964884519] [2024-10-15 00:00:29,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-15 00:00:29,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-15 00:00:29,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-15 00:00:29,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-15 00:00:29,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-15 00:00:29,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 40 [2024-10-15 00:00:29,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 37 transitions, 171 flow. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:29,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-15 00:00:29,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 40 [2024-10-15 00:00:29,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-15 00:00:29,418 INFO L124 PetriNetUnfolderBase]: 183/394 cut-off events. [2024-10-15 00:00:29,418 INFO L125 PetriNetUnfolderBase]: For 163/170 co-relation queries the response was YES. [2024-10-15 00:00:29,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 394 events. 183/394 cut-off events. For 163/170 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1924 event pairs, 81 based on Foata normal form. 17/389 useless extension candidates. Maximal degree in co-relation 736. Up to 176 conditions per place. [2024-10-15 00:00:29,420 INFO L140 encePairwiseOnDemand]: 35/40 looper letters, 0 selfloop transitions, 0 changer transitions 48/48 dead transitions. [2024-10-15 00:00:29,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 48 transitions, 275 flow [2024-10-15 00:00:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-15 00:00:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-15 00:00:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 98 transitions. [2024-10-15 00:00:29,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4083333333333333 [2024-10-15 00:00:29,421 INFO L175 Difference]: Start difference. First operand has 53 places, 37 transitions, 171 flow. Second operand 6 states and 98 transitions. [2024-10-15 00:00:29,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 48 transitions, 275 flow [2024-10-15 00:00:29,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 266 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-15 00:00:29,423 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2024-10-15 00:00:29,423 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=40, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2024-10-15 00:00:29,424 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 10 predicate places. [2024-10-15 00:00:29,424 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2024-10-15 00:00:29,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-15 00:00:29,427 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-10-15 00:00:29,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-10-15 00:00:29,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-10-15 00:00:29,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-10-15 00:00:29,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-10-15 00:00:29,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-10-15 00:00:29,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-10-15 00:00:29,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-10-15 00:00:29,430 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-10-15 00:00:29,431 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-10-15 00:00:29,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-15 00:00:29,432 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-15 00:00:29,437 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-15 00:00:29,437 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-15 00:00:29,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 12:00:29 BasicIcfg [2024-10-15 00:00:29,442 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-15 00:00:29,443 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-15 00:00:29,443 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-15 00:00:29,443 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-15 00:00:29,443 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 12:00:25" (3/4) ... [2024-10-15 00:00:29,445 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-15 00:00:29,447 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-15 00:00:29,447 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-15 00:00:29,452 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-10-15 00:00:29,452 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-10-15 00:00:29,452 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-15 00:00:29,452 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-15 00:00:29,528 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-15 00:00:29,529 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-15 00:00:29,529 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-15 00:00:29,533 INFO L158 Benchmark]: Toolchain (without parser) took 4598.62ms. Allocated memory was 176.2MB in the beginning and 237.0MB in the end (delta: 60.8MB). Free memory was 116.8MB in the beginning and 189.8MB in the end (delta: -73.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:00:29,533 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 176.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 00:00:29,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.04ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 103.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 00:00:29,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.62ms. Allocated memory is still 176.2MB. Free memory was 103.8MB in the beginning and 101.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:00:29,533 INFO L158 Benchmark]: Boogie Preprocessor took 48.96ms. Allocated memory is still 176.2MB. Free memory was 101.7MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 00:00:29,533 INFO L158 Benchmark]: RCFGBuilder took 652.85ms. Allocated memory was 176.2MB in the beginning and 237.0MB in the end (delta: 60.8MB). Free memory was 99.5MB in the beginning and 197.3MB in the end (delta: -97.8MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-10-15 00:00:29,534 INFO L158 Benchmark]: TraceAbstraction took 3468.44ms. Allocated memory is still 237.0MB. Free memory was 197.3MB in the beginning and 195.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2024-10-15 00:00:29,534 INFO L158 Benchmark]: Witness Printer took 89.47ms. Allocated memory is still 237.0MB. Free memory was 195.1MB in the beginning and 189.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-15 00:00:29,535 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 176.2MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.04ms. Allocated memory is still 176.2MB. Free memory was 116.8MB in the beginning and 103.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.62ms. Allocated memory is still 176.2MB. Free memory was 103.8MB in the beginning and 101.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.96ms. Allocated memory is still 176.2MB. Free memory was 101.7MB in the beginning and 99.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.85ms. Allocated memory was 176.2MB in the beginning and 237.0MB in the end (delta: 60.8MB). Free memory was 99.5MB in the beginning and 197.3MB in the end (delta: -97.8MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3468.44ms. Allocated memory is still 237.0MB. Free memory was 197.3MB in the beginning and 195.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Witness Printer took 89.47ms. Allocated memory is still 237.0MB. Free memory was 195.1MB in the beginning and 189.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 100]: 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, 75 locations, 18 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: 3.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 392 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 351 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 939 IncrementalHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 18 mSDtfsCounter, 939 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=280occurred in iteration=7, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-15 00:00:29,579 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