./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-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 673666cb71096405cc13bacc98be08aac7026343d1cf8127c7ee9fffc801c83e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-12 00:03:31,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 00:03:31,258 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-12 00:03:31,263 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 00:03:31,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 00:03:31,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 00:03:31,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 00:03:31,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 00:03:31,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 00:03:31,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 00:03:31,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 00:03:31,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 00:03:31,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 00:03:31,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 00:03:31,290 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 00:03:31,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 00:03:31,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 00:03:31,291 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 00:03:31,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 00:03:31,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 00:03:31,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 00:03:31,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 00:03:31,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 00:03:31,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 00:03:31,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 00:03:31,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-12 00:03:31,294 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-12 00:03:31,294 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 00:03:31,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 00:03:31,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 00:03:31,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 00:03:31,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 00:03:31,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 00:03:31,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 00:03:31,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:03:31,295 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 00:03:31,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 00:03:31,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 00:03:31,296 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 00:03:31,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 00:03:31,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 00:03:31,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 00:03:31,297 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 00:03:31,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 00:03:31,298 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 673666cb71096405cc13bacc98be08aac7026343d1cf8127c7ee9fffc801c83e [2024-10-12 00:03:31,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 00:03:31,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 00:03:31,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 00:03:31,511 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 00:03:31,512 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 00:03:31,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-10-12 00:03:32,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:03:32,914 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:03:32,914 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-10-12 00:03:32,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6f725c5bb/f408b97a5f2549189eb3e2f6f85cfc54/FLAG8746f74c1 [2024-10-12 00:03:32,941 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/6f725c5bb/f408b97a5f2549189eb3e2f6f85cfc54 [2024-10-12 00:03:32,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:03:32,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:03:32,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:03:32,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:03:32,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:03:32,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:03:32" (1/1) ... [2024-10-12 00:03:32,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312f9bb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:32, skipping insertion in model container [2024-10-12 00:03:32,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:03:32" (1/1) ... [2024-10-12 00:03:32,970 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:03:33,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:03:33,132 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:03:33,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:03:33,164 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:03:33,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33 WrapperNode [2024-10-12 00:03:33,165 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:03:33,166 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:03:33,166 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:03:33,166 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:03:33,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,192 INFO L138 Inliner]: procedures = 20, calls = 39, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 123 [2024-10-12 00:03:33,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:03:33,193 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:03:33,193 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:03:33,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:03:33,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,203 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,212 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 00:03:33,212 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,212 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,222 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,228 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:03:33,229 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:03:33,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:03:33,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:03:33,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (1/1) ... [2024-10-12 00:03:33,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:03:33,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:03:33,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:03:33,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:03:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:03:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-12 00:03:33,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-12 00:03:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-12 00:03:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-12 00:03:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:03:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-12 00:03:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-12 00:03:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:03:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:03:33,286 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:03:33,352 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:03:33,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:03:33,556 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:03:33,556 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:03:33,755 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:03:33,756 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 00:03:33,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:03:33 BoogieIcfgContainer [2024-10-12 00:03:33,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:03:33,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:03:33,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:03:33,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:03:33,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:03:32" (1/3) ... [2024-10-12 00:03:33,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714566a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:03:33, skipping insertion in model container [2024-10-12 00:03:33,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:03:33" (2/3) ... [2024-10-12 00:03:33,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@714566a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:03:33, skipping insertion in model container [2024-10-12 00:03:33,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:03:33" (3/3) ... [2024-10-12 00:03:33,764 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2024-10-12 00:03:33,777 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:03:33,778 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-12 00:03:33,778 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:03:33,816 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-12 00:03:33,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 37 transitions, 88 flow [2024-10-12 00:03:33,866 INFO L124 PetriNetUnfolderBase]: 2/35 cut-off events. [2024-10-12 00:03:33,867 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-12 00:03:33,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 35 events. 2/35 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-10-12 00:03:33,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 37 transitions, 88 flow [2024-10-12 00:03:33,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 75 flow [2024-10-12 00:03:33,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:03:33,890 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;@24133acb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:03:33,890 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-12 00:03:33,893 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:03:33,894 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-12 00:03:33,894 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:03:33,894 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:33,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-12 00:03:33,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:33,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:33,899 INFO L85 PathProgramCache]: Analyzing trace with hash 13366248, now seen corresponding path program 1 times [2024-10-12 00:03:33,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:33,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396533890] [2024-10-12 00:03:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:33,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:34,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:34,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:34,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396533890] [2024-10-12 00:03:34,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396533890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:34,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:34,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:03:34,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755473362] [2024-10-12 00:03:34,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:34,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:03:34,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:34,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:03:34,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:03:34,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-12 00:03:34,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 33 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:34,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:34,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-12 00:03:34,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:34,311 INFO L124 PetriNetUnfolderBase]: 202/445 cut-off events. [2024-10-12 00:03:34,312 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-12 00:03:34,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 445 events. 202/445 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2351 event pairs, 178 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 749. Up to 328 conditions per place. [2024-10-12 00:03:34,318 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 19 selfloop transitions, 1 changer transitions 0/32 dead transitions. [2024-10-12 00:03:34,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 32 transitions, 113 flow [2024-10-12 00:03:34,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:03:34,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:03:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-10-12 00:03:34,328 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2024-10-12 00:03:34,329 INFO L175 Difference]: Start difference. First operand has 38 places, 33 transitions, 75 flow. Second operand 3 states and 63 transitions. [2024-10-12 00:03:34,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 32 transitions, 113 flow [2024-10-12 00:03:34,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 32 transitions, 108 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:03:34,334 INFO L231 Difference]: Finished difference. Result has 36 places, 32 transitions, 70 flow [2024-10-12 00:03:34,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=36, PETRI_TRANSITIONS=32} [2024-10-12 00:03:34,338 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, -2 predicate places. [2024-10-12 00:03:34,338 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 32 transitions, 70 flow [2024-10-12 00:03:34,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:34,338 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:34,338 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-12 00:03:34,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 00:03:34,339 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:34,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:34,339 INFO L85 PathProgramCache]: Analyzing trace with hash 13366249, now seen corresponding path program 1 times [2024-10-12 00:03:34,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:34,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730349020] [2024-10-12 00:03:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:34,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:34,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:34,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730349020] [2024-10-12 00:03:34,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730349020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:34,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:34,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:03:34,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765384936] [2024-10-12 00:03:34,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:34,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:03:34,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:34,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:03:34,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:03:34,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-12 00:03:34,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 32 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:34,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:34,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-12 00:03:34,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:34,515 INFO L124 PetriNetUnfolderBase]: 166/382 cut-off events. [2024-10-12 00:03:34,515 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-12 00:03:34,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 382 events. 166/382 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2050 event pairs, 51 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 682. Up to 184 conditions per place. [2024-10-12 00:03:34,518 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 27 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2024-10-12 00:03:34,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 44 transitions, 161 flow [2024-10-12 00:03:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:03:34,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:03:34,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 78 transitions. [2024-10-12 00:03:34,520 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7027027027027027 [2024-10-12 00:03:34,520 INFO L175 Difference]: Start difference. First operand has 36 places, 32 transitions, 70 flow. Second operand 3 states and 78 transitions. [2024-10-12 00:03:34,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 44 transitions, 161 flow [2024-10-12 00:03:34,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:03:34,524 INFO L231 Difference]: Finished difference. Result has 38 places, 34 transitions, 105 flow [2024-10-12 00:03:34,524 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=34} [2024-10-12 00:03:34,525 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 0 predicate places. [2024-10-12 00:03:34,525 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 34 transitions, 105 flow [2024-10-12 00:03:34,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:34,525 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:34,525 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-12 00:03:34,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 00:03:34,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:34,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:34,527 INFO L85 PathProgramCache]: Analyzing trace with hash 414354165, now seen corresponding path program 1 times [2024-10-12 00:03:34,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:34,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146556241] [2024-10-12 00:03:34,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:34,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:34,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:34,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:34,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146556241] [2024-10-12 00:03:34,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146556241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:34,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:34,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:03:34,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701521516] [2024-10-12 00:03:34,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:34,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:34,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:34,663 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-10-12 00:03:34,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 105 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:34,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:34,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-10-12 00:03:34,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:34,845 INFO L124 PetriNetUnfolderBase]: 185/427 cut-off events. [2024-10-12 00:03:34,845 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-10-12 00:03:34,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 931 conditions, 427 events. 185/427 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2295 event pairs, 14 based on Foata normal form. 16/413 useless extension candidates. Maximal degree in co-relation 922. Up to 227 conditions per place. [2024-10-12 00:03:34,850 INFO L140 encePairwiseOnDemand]: 25/37 looper letters, 33 selfloop transitions, 11 changer transitions 0/55 dead transitions. [2024-10-12 00:03:34,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 55 transitions, 251 flow [2024-10-12 00:03:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 00:03:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-12 00:03:34,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 110 transitions. [2024-10-12 00:03:34,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2024-10-12 00:03:34,854 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 105 flow. Second operand 5 states and 110 transitions. [2024-10-12 00:03:34,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 55 transitions, 251 flow [2024-10-12 00:03:34,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 55 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:03:34,858 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 187 flow [2024-10-12 00:03:34,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=187, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2024-10-12 00:03:34,859 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 6 predicate places. [2024-10-12 00:03:34,860 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 187 flow [2024-10-12 00:03:34,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:34,860 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:34,860 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-12 00:03:34,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 00:03:34,861 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:34,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:34,861 INFO L85 PathProgramCache]: Analyzing trace with hash 414354166, now seen corresponding path program 1 times [2024-10-12 00:03:34,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:34,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382556891] [2024-10-12 00:03:34,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:34,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:34,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:34,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382556891] [2024-10-12 00:03:34,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382556891] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:34,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:34,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:03:34,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92308084] [2024-10-12 00:03:34,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:34,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:34,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:34,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:34,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:34,963 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-10-12 00:03:34,964 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:34,964 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:34,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-10-12 00:03:34,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:35,058 INFO L124 PetriNetUnfolderBase]: 238/544 cut-off events. [2024-10-12 00:03:35,058 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2024-10-12 00:03:35,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 544 events. 238/544 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3038 event pairs, 49 based on Foata normal form. 28/522 useless extension candidates. Maximal degree in co-relation 1345. Up to 208 conditions per place. [2024-10-12 00:03:35,061 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 42 selfloop transitions, 7 changer transitions 0/60 dead transitions. [2024-10-12 00:03:35,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 60 transitions, 354 flow [2024-10-12 00:03:35,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:35,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 91 transitions. [2024-10-12 00:03:35,062 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148648648648649 [2024-10-12 00:03:35,063 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 187 flow. Second operand 4 states and 91 transitions. [2024-10-12 00:03:35,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 60 transitions, 354 flow [2024-10-12 00:03:35,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 60 transitions, 354 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:03:35,065 INFO L231 Difference]: Finished difference. Result has 50 places, 47 transitions, 259 flow [2024-10-12 00:03:35,065 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=50, PETRI_TRANSITIONS=47} [2024-10-12 00:03:35,066 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 12 predicate places. [2024-10-12 00:03:35,066 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 47 transitions, 259 flow [2024-10-12 00:03:35,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:35,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:35,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:35,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 00:03:35,067 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:35,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:35,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1247922183, now seen corresponding path program 1 times [2024-10-12 00:03:35,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:35,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148359918] [2024-10-12 00:03:35,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:35,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:35,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:35,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148359918] [2024-10-12 00:03:35,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148359918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:35,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:35,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:03:35,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848939665] [2024-10-12 00:03:35,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:35,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:03:35,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:03:35,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:03:35,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-12 00:03:35,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:35,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:35,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-12 00:03:35,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:35,191 INFO L124 PetriNetUnfolderBase]: 215/500 cut-off events. [2024-10-12 00:03:35,191 INFO L125 PetriNetUnfolderBase]: For 770/770 co-relation queries the response was YES. [2024-10-12 00:03:35,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1360 conditions, 500 events. 215/500 cut-off events. For 770/770 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2777 event pairs, 57 based on Foata normal form. 5/458 useless extension candidates. Maximal degree in co-relation 1342. Up to 279 conditions per place. [2024-10-12 00:03:35,195 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 34 selfloop transitions, 10 changer transitions 0/58 dead transitions. [2024-10-12 00:03:35,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 58 transitions, 398 flow [2024-10-12 00:03:35,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:03:35,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:03:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-10-12 00:03:35,197 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6936936936936937 [2024-10-12 00:03:35,197 INFO L175 Difference]: Start difference. First operand has 50 places, 47 transitions, 259 flow. Second operand 3 states and 77 transitions. [2024-10-12 00:03:35,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 58 transitions, 398 flow [2024-10-12 00:03:35,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 396 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-12 00:03:35,200 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 333 flow [2024-10-12 00:03:35,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=333, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-10-12 00:03:35,201 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-10-12 00:03:35,201 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 333 flow [2024-10-12 00:03:35,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:35,202 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:35,202 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:35,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 00:03:35,202 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:35,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:35,202 INFO L85 PathProgramCache]: Analyzing trace with hash -30881519, now seen corresponding path program 1 times [2024-10-12 00:03:35,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:35,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163824670] [2024-10-12 00:03:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:35,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:35,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:35,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:35,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163824670] [2024-10-12 00:03:35,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163824670] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:35,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:35,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:03:35,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565136081] [2024-10-12 00:03:35,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:35,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:35,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:35,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:35,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:35,264 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-12 00:03:35,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 333 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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) [2024-10-12 00:03:35,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:35,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-12 00:03:35,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:35,339 INFO L124 PetriNetUnfolderBase]: 186/459 cut-off events. [2024-10-12 00:03:35,339 INFO L125 PetriNetUnfolderBase]: For 992/992 co-relation queries the response was YES. [2024-10-12 00:03:35,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1280 conditions, 459 events. 186/459 cut-off events. For 992/992 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2544 event pairs, 31 based on Foata normal form. 22/435 useless extension candidates. Maximal degree in co-relation 1258. Up to 173 conditions per place. [2024-10-12 00:03:35,343 INFO L140 encePairwiseOnDemand]: 27/37 looper letters, 35 selfloop transitions, 15 changer transitions 0/64 dead transitions. [2024-10-12 00:03:35,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 64 transitions, 491 flow [2024-10-12 00:03:35,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:35,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:35,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2024-10-12 00:03:35,344 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6824324324324325 [2024-10-12 00:03:35,344 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 333 flow. Second operand 4 states and 101 transitions. [2024-10-12 00:03:35,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 64 transitions, 491 flow [2024-10-12 00:03:35,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 64 transitions, 458 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:03:35,349 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 366 flow [2024-10-12 00:03:35,349 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=366, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-10-12 00:03:35,349 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 16 predicate places. [2024-10-12 00:03:35,350 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 366 flow [2024-10-12 00:03:35,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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) [2024-10-12 00:03:35,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:35,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:35,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 00:03:35,351 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:35,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:35,351 INFO L85 PathProgramCache]: Analyzing trace with hash -957342473, now seen corresponding path program 1 times [2024-10-12 00:03:35,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:35,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509044115] [2024-10-12 00:03:35,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:35,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:35,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:35,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509044115] [2024-10-12 00:03:35,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509044115] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:35,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:35,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:03:35,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266575845] [2024-10-12 00:03:35,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:35,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:03:35,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:35,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:03:35,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:03:35,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-12 00:03:35,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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) [2024-10-12 00:03:35,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:35,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-12 00:03:35,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:35,473 INFO L124 PetriNetUnfolderBase]: 150/339 cut-off events. [2024-10-12 00:03:35,473 INFO L125 PetriNetUnfolderBase]: For 1267/1267 co-relation queries the response was YES. [2024-10-12 00:03:35,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 339 events. 150/339 cut-off events. For 1267/1267 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1641 event pairs, 63 based on Foata normal form. 34/339 useless extension candidates. Maximal degree in co-relation 1005. Up to 216 conditions per place. [2024-10-12 00:03:35,475 INFO L140 encePairwiseOnDemand]: 28/37 looper letters, 23 selfloop transitions, 12 changer transitions 0/49 dead transitions. [2024-10-12 00:03:35,476 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 364 flow [2024-10-12 00:03:35,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:03:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:03:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-10-12 00:03:35,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.581081081081081 [2024-10-12 00:03:35,476 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 366 flow. Second operand 4 states and 86 transitions. [2024-10-12 00:03:35,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 364 flow [2024-10-12 00:03:35,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 49 transitions, 322 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-10-12 00:03:35,480 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 285 flow [2024-10-12 00:03:35,480 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2024-10-12 00:03:35,480 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 13 predicate places. [2024-10-12 00:03:35,480 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 285 flow [2024-10-12 00:03:35,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 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) [2024-10-12 00:03:35,481 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:03:35,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:35,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 00:03:35,481 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-10-12 00:03:35,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:03:35,481 INFO L85 PathProgramCache]: Analyzing trace with hash -867863383, now seen corresponding path program 1 times [2024-10-12 00:03:35,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:03:35,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805634146] [2024-10-12 00:03:35,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:03:35,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:03:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:03:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:03:35,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:03:35,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805634146] [2024-10-12 00:03:35,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805634146] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:03:35,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:03:35,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 00:03:35,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061745455] [2024-10-12 00:03:35,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:03:35,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 00:03:35,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:03:35,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 00:03:35,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-12 00:03:35,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 37 [2024-10-12 00:03:35,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:35,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:03:35,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 37 [2024-10-12 00:03:35,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:03:35,650 INFO L124 PetriNetUnfolderBase]: 125/315 cut-off events. [2024-10-12 00:03:35,650 INFO L125 PetriNetUnfolderBase]: For 673/673 co-relation queries the response was YES. [2024-10-12 00:03:35,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 315 events. 125/315 cut-off events. For 673/673 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1501 event pairs, 8 based on Foata normal form. 28/311 useless extension candidates. Maximal degree in co-relation 807. Up to 78 conditions per place. [2024-10-12 00:03:35,651 INFO L140 encePairwiseOnDemand]: 31/37 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2024-10-12 00:03:35,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 52 transitions, 354 flow [2024-10-12 00:03:35,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 00:03:35,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-12 00:03:35,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-10-12 00:03:35,653 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5225225225225225 [2024-10-12 00:03:35,653 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 285 flow. Second operand 6 states and 116 transitions. [2024-10-12 00:03:35,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 52 transitions, 354 flow [2024-10-12 00:03:35,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 52 transitions, 322 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-10-12 00:03:35,654 INFO L231 Difference]: Finished difference. Result has 48 places, 0 transitions, 0 flow [2024-10-12 00:03:35,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=48, PETRI_TRANSITIONS=0} [2024-10-12 00:03:35,655 INFO L277 CegarLoopForPetriNet]: 38 programPoint places, 10 predicate places. [2024-10-12 00:03:35,655 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 0 transitions, 0 flow [2024-10-12 00:03:35,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:03:35,658 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-10-12 00:03:35,658 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-10-12 00:03:35,660 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-10-12 00:03:35,661 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-10-12 00:03:35,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-10-12 00:03:35,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-10-12 00:03:35,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-10-12 00:03:35,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-10-12 00:03:35,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-10-12 00:03:35,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-10-12 00:03:35,662 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-10-12 00:03:35,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 00:03:35,662 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:03:35,667 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-12 00:03:35,667 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 00:03:35,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 12:03:35 BasicIcfg [2024-10-12 00:03:35,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 00:03:35,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 00:03:35,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 00:03:35,673 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 00:03:35,673 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:03:33" (3/4) ... [2024-10-12 00:03:35,674 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 00:03:35,678 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-12 00:03:35,678 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-12 00:03:35,684 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 100 nodes and edges [2024-10-12 00:03:35,684 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-10-12 00:03:35,685 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-12 00:03:35,685 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 00:03:35,763 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 00:03:35,763 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 00:03:35,763 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 00:03:35,764 INFO L158 Benchmark]: Toolchain (without parser) took 2819.12ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 116.8MB in the beginning and 153.8MB in the end (delta: -37.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2024-10-12 00:03:35,764 INFO L158 Benchmark]: CDTParser took 1.21ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 52.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 00:03:35,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.23ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 104.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 00:03:35,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.21ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 101.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:03:35,764 INFO L158 Benchmark]: Boogie Preprocessor took 34.97ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 00:03:35,765 INFO L158 Benchmark]: RCFGBuilder took 527.73ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 106.3MB in the end (delta: -6.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-10-12 00:03:35,765 INFO L158 Benchmark]: TraceAbstraction took 1914.39ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 106.2MB in the beginning and 159.0MB in the end (delta: -52.8MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. [2024-10-12 00:03:35,765 INFO L158 Benchmark]: Witness Printer took 90.68ms. Allocated memory is still 195.0MB. Free memory was 159.0MB in the beginning and 153.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 00:03:35,766 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21ms. Allocated memory is still 92.3MB. Free memory was 52.8MB in the beginning and 52.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.23ms. Allocated memory is still 142.6MB. Free memory was 116.5MB in the beginning and 104.0MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.21ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 101.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.97ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 99.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.73ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 106.3MB in the end (delta: -6.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1914.39ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 106.2MB in the beginning and 159.0MB in the end (delta: -52.8MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. * Witness Printer took 90.68ms. Allocated memory is still 195.0MB. Free memory was 159.0MB in the beginning and 153.8MB 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: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 48]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 70]: 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, 65 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: 1.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 153 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 393 IncrementalHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 2 mSDtfsCounter, 393 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=366occurred in iteration=6, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 195 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2024-10-12 00:03:35,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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