./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/rfi004.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/pthread-wmm/rfi004.i -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 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 01:45:11,333 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 01:45:11,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 01:45:11,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 01:45:11,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 01:45:11,418 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 01:45:11,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 01:45:11,419 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 01:45:11,420 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 01:45:11,420 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 01:45:11,420 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 01:45:11,421 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 01:45:11,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 01:45:11,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 01:45:11,422 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 01:45:11,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 01:45:11,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 01:45:11,422 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 01:45:11,423 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 01:45:11,423 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 01:45:11,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 01:45:11,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 01:45:11,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 01:45:11,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 01:45:11,425 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 01:45:11,425 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 01:45:11,425 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 01:45:11,425 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 01:45:11,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 01:45:11,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 01:45:11,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 01:45:11,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 01:45:11,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 01:45:11,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 01:45:11,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:45:11,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 01:45:11,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 01:45:11,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 01:45:11,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 01:45:11,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 01:45:11,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 01:45:11,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 01:45:11,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 01:45:11,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 01:45:11,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 131a5c0bb00c7f6e11a814871ba4a0d65133507ca6f79e4b87c2742dbe2c5590 [2024-11-23 01:45:11,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 01:45:11,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 01:45:11,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 01:45:11,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 01:45:11,662 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 01:45:11,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi004.i [2024-11-23 01:45:13,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 01:45:13,395 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 01:45:13,396 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi004.i [2024-11-23 01:45:13,411 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/967805442/b3c28945ef3f45a89fd9e3e71a8f1d19/FLAG76fe87a8e [2024-11-23 01:45:13,754 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/967805442/b3c28945ef3f45a89fd9e3e71a8f1d19 [2024-11-23 01:45:13,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 01:45:13,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 01:45:13,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 01:45:13,758 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 01:45:13,763 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 01:45:13,764 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:13" (1/1) ... [2024-11-23 01:45:13,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@365f4814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:13, skipping insertion in model container [2024-11-23 01:45:13,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:45:13" (1/1) ... [2024-11-23 01:45:13,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 01:45:14,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:45:14,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 01:45:14,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 01:45:14,265 INFO L204 MainTranslator]: Completed translation [2024-11-23 01:45:14,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14 WrapperNode [2024-11-23 01:45:14,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 01:45:14,267 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 01:45:14,267 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 01:45:14,267 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 01:45:14,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,339 INFO L138 Inliner]: procedures = 174, calls = 40, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 118 [2024-11-23 01:45:14,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 01:45:14,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 01:45:14,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 01:45:14,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 01:45:14,356 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,359 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,378 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 01:45:14,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 01:45:14,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 01:45:14,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 01:45:14,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 01:45:14,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (1/1) ... [2024-11-23 01:45:14,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 01:45:14,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 01:45:14,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 01:45:14,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 01:45:14,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-23 01:45:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 01:45:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-23 01:45:14,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-23 01:45:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-23 01:45:14,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-23 01:45:14,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 01:45:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-23 01:45:14,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 01:45:14,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 01:45:14,480 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 01:45:14,587 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 01:45:14,589 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 01:45:14,802 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 01:45:14,803 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 01:45:14,964 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 01:45:14,964 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 01:45:14,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:14 BoogieIcfgContainer [2024-11-23 01:45:14,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 01:45:14,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 01:45:14,967 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 01:45:14,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 01:45:14,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:45:13" (1/3) ... [2024-11-23 01:45:14,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e38bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:45:14, skipping insertion in model container [2024-11-23 01:45:14,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:45:14" (2/3) ... [2024-11-23 01:45:14,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e38bcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:45:14, skipping insertion in model container [2024-11-23 01:45:14,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:14" (3/3) ... [2024-11-23 01:45:14,974 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi004.i [2024-11-23 01:45:14,996 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 01:45:14,997 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-23 01:45:14,997 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 01:45:15,076 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-23 01:45:15,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 70 flow [2024-11-23 01:45:15,116 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2024-11-23 01:45:15,116 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:45:15,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 29 events. 0/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-23 01:45:15,118 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 31 transitions, 70 flow [2024-11-23 01:45:15,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 64 flow [2024-11-23 01:45:15,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 01:45:15,131 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;@2c6097e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 01:45:15,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-23 01:45:15,136 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 01:45:15,136 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-23 01:45:15,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 01:45:15,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:45:15,136 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:45:15,137 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-23 01:45:15,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:45:15,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1386236871, now seen corresponding path program 1 times [2024-11-23 01:45:15,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:45:15,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725343365] [2024-11-23 01:45:15,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:45:15,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:45:15,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:45:15,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:45:15,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:45:15,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725343365] [2024-11-23 01:45:15,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725343365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:45:15,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:45:15,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 01:45:15,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85948420] [2024-11-23 01:45:15,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:45:15,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 01:45:15,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:45:15,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 01:45:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 01:45:15,411 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 31 [2024-11-23 01:45:15,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 29 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:45:15,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:45:15,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 31 [2024-11-23 01:45:15,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:45:15,549 INFO L124 PetriNetUnfolderBase]: 194/367 cut-off events. [2024-11-23 01:45:15,549 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 01:45:15,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 367 events. 194/367 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1723 event pairs, 62 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 714. Up to 277 conditions per place. [2024-11-23 01:45:15,555 INFO L140 encePairwiseOnDemand]: 24/31 looper letters, 25 selfloop transitions, 3 changer transitions 2/40 dead transitions. [2024-11-23 01:45:15,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 40 transitions, 149 flow [2024-11-23 01:45:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 01:45:15,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 01:45:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-23 01:45:15,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7526881720430108 [2024-11-23 01:45:15,569 INFO L175 Difference]: Start difference. First operand has 36 places, 29 transitions, 64 flow. Second operand 3 states and 70 transitions. [2024-11-23 01:45:15,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 40 transitions, 149 flow [2024-11-23 01:45:15,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 40 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-23 01:45:15,573 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 79 flow [2024-11-23 01:45:15,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-23 01:45:15,577 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-11-23 01:45:15,578 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 79 flow [2024-11-23 01:45:15,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:45:15,579 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:45:15,579 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:45:15,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 01:45:15,579 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-23 01:45:15,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:45:15,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1945450572, now seen corresponding path program 1 times [2024-11-23 01:45:15,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:45:15,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496225891] [2024-11-23 01:45:15,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:45:15,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:45:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:45:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:45:15,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:45:15,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496225891] [2024-11-23 01:45:15,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496225891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:45:15,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:45:15,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:45:15,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069038223] [2024-11-23 01:45:15,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:45:15,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:45:15,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:45:15,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:45:15,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:45:15,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 31 [2024-11-23 01:45:15,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 79 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:45:15,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:45:15,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 31 [2024-11-23 01:45:15,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:45:15,865 INFO L124 PetriNetUnfolderBase]: 132/265 cut-off events. [2024-11-23 01:45:15,865 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-23 01:45:15,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 265 events. 132/265 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1222 event pairs, 42 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 584. Up to 174 conditions per place. [2024-11-23 01:45:15,868 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 23 selfloop transitions, 3 changer transitions 0/36 dead transitions. [2024-11-23 01:45:15,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 36 transitions, 143 flow [2024-11-23 01:45:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:45:15,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:45:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-23 01:45:15,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6129032258064516 [2024-11-23 01:45:15,869 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 79 flow. Second operand 4 states and 76 transitions. [2024-11-23 01:45:15,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 36 transitions, 143 flow [2024-11-23 01:45:15,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 36 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 01:45:15,871 INFO L231 Difference]: Finished difference. Result has 37 places, 27 transitions, 74 flow [2024-11-23 01:45:15,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=37, PETRI_TRANSITIONS=27} [2024-11-23 01:45:15,871 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-11-23 01:45:15,871 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 27 transitions, 74 flow [2024-11-23 01:45:15,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:45:15,872 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 01:45:15,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 01:45:15,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 01:45:15,872 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-23 01:45:15,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 01:45:15,873 INFO L85 PathProgramCache]: Analyzing trace with hash 474106377, now seen corresponding path program 1 times [2024-11-23 01:45:15,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 01:45:15,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052537191] [2024-11-23 01:45:15,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 01:45:15,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 01:45:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 01:45:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 01:45:15,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 01:45:15,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052537191] [2024-11-23 01:45:15,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052537191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 01:45:15,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 01:45:15,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 01:45:15,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386726222] [2024-11-23 01:45:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 01:45:15,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 01:45:15,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 01:45:15,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 01:45:15,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-23 01:45:15,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 31 [2024-11-23 01:45:15,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 27 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:45:15,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 01:45:15,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 31 [2024-11-23 01:45:15,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 01:45:16,085 INFO L124 PetriNetUnfolderBase]: 106/219 cut-off events. [2024-11-23 01:45:16,085 INFO L125 PetriNetUnfolderBase]: For 87/87 co-relation queries the response was YES. [2024-11-23 01:45:16,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 484 conditions, 219 events. 106/219 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1053 event pairs, 32 based on Foata normal form. 20/230 useless extension candidates. Maximal degree in co-relation 472. Up to 128 conditions per place. [2024-11-23 01:45:16,088 INFO L140 encePairwiseOnDemand]: 26/31 looper letters, 0 selfloop transitions, 0 changer transitions 34/34 dead transitions. [2024-11-23 01:45:16,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 134 flow [2024-11-23 01:45:16,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 01:45:16,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 01:45:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 74 transitions. [2024-11-23 01:45:16,089 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5967741935483871 [2024-11-23 01:45:16,089 INFO L175 Difference]: Start difference. First operand has 37 places, 27 transitions, 74 flow. Second operand 4 states and 74 transitions. [2024-11-23 01:45:16,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 134 flow [2024-11-23 01:45:16,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 34 transitions, 127 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 01:45:16,090 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-11-23 01:45:16,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=59, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-11-23 01:45:16,091 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-11-23 01:45:16,091 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-11-23 01:45:16,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 01:45:16,094 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-23 01:45:16,095 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-23 01:45:16,095 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-23 01:45:16,095 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-23 01:45:16,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-23 01:45:16,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-23 01:45:16,096 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-23 01:45:16,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-23 01:45:16,097 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-23 01:45:16,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-23 01:45:16,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 01:45:16,098 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-23 01:45:16,104 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 01:45:16,105 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 01:45:16,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:45:16 BasicIcfg [2024-11-23 01:45:16,110 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 01:45:16,111 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 01:45:16,111 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 01:45:16,112 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 01:45:16,112 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:45:14" (3/4) ... [2024-11-23 01:45:16,114 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-23 01:45:16,118 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-23 01:45:16,118 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-23 01:45:16,122 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-23 01:45:16,123 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-23 01:45:16,124 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 01:45:16,124 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 01:45:16,194 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 01:45:16,201 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-23 01:45:16,201 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 01:45:16,202 INFO L158 Benchmark]: Toolchain (without parser) took 2444.83ms. Allocated memory was 144.7MB in the beginning and 211.8MB in the end (delta: 67.1MB). Free memory was 74.6MB in the beginning and 163.1MB in the end (delta: -88.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:45:16,202 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 144.7MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 01:45:16,202 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.24ms. Allocated memory is still 144.7MB. Free memory was 74.5MB in the beginning and 99.3MB in the end (delta: -24.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-11-23 01:45:16,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.24ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 96.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:45:16,203 INFO L158 Benchmark]: Boogie Preprocessor took 57.78ms. Allocated memory is still 144.7MB. Free memory was 96.7MB in the beginning and 93.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 01:45:16,203 INFO L158 Benchmark]: RCFGBuilder took 564.25ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 49.0MB in the end (delta: 44.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-23 01:45:16,203 INFO L158 Benchmark]: TraceAbstraction took 1143.92ms. Allocated memory was 144.7MB in the beginning and 211.8MB in the end (delta: 67.1MB). Free memory was 48.0MB in the beginning and 167.3MB in the end (delta: -119.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-11-23 01:45:16,204 INFO L158 Benchmark]: Witness Printer took 89.93ms. Allocated memory is still 211.8MB. Free memory was 167.3MB in the beginning and 163.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 01:45:16,205 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 144.7MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 508.24ms. Allocated memory is still 144.7MB. Free memory was 74.5MB in the beginning and 99.3MB in the end (delta: -24.8MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.24ms. Allocated memory is still 144.7MB. Free memory was 99.3MB in the beginning and 96.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.78ms. Allocated memory is still 144.7MB. Free memory was 96.7MB in the beginning and 93.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.25ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 49.0MB in the end (delta: 44.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1143.92ms. Allocated memory was 144.7MB in the beginning and 211.8MB in the end (delta: 67.1MB). Free memory was 48.0MB in the beginning and 167.3MB in the end (delta: -119.3MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 89.93ms. Allocated memory is still 211.8MB. Free memory was 167.3MB in the beginning and 163.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 766]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: 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, 55 locations, 10 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: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 126 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 1 mSDtfsCounter, 126 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 01:45:16,226 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