./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe036.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/safe036.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 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:33:44,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:33:44,130 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:33:44,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:33:44,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:33:44,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:33:44,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:33:44,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:33:44,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:33:44,175 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:33:44,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:33:44,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:33:44,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:33:44,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:33:44,178 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:33:44,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:33:44,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:33:44,179 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:33:44,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:33:44,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:33:44,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:33:44,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:33:44,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:33:44,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:33:44,184 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:33:44,185 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:33:44,185 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:33:44,185 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:33:44,185 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:33:44,185 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:33:44,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:33:44,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:33:44,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:33:44,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:33:44,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:33:44,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:33:44,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:33:44,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:33:44,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:33:44,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:33:44,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:33:44,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:33:44,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:33:44,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:33:44,189 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a [2024-11-12 20:33:44,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:33:44,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:33:44,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:33:44,468 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:33:44,468 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:33:44,470 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe036.i [2024-11-12 20:33:45,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:33:46,229 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:33:46,230 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe036.i [2024-11-12 20:33:46,263 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb8416b3/541ab532a5324a2f8fc4d75728f9c62d/FLAGf59cd2b0f [2024-11-12 20:33:46,279 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6eb8416b3/541ab532a5324a2f8fc4d75728f9c62d [2024-11-12 20:33:46,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:33:46,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:33:46,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:33:46,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:33:46,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:33:46,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2d8f04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46, skipping insertion in model container [2024-11-12 20:33:46,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:33:46,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:33:46,669 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:33:46,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:33:46,764 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:33:46,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46 WrapperNode [2024-11-12 20:33:46,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:33:46,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:33:46,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:33:46,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:33:46,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,782 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,796 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2024-11-12 20:33:46,796 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:33:46,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:33:46,797 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:33:46,797 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:33:46,804 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,807 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,825 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]. [2024-11-12 20:33:46,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,831 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,832 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:33:46,837 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:33:46,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:33:46,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:33:46,838 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (1/1) ... [2024-11-12 20:33:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:33:46,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:33:46,884 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) [2024-11-12 20:33:46,890 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 [2024-11-12 20:33:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-12 20:33:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:33:46,936 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-12 20:33:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-12 20:33:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-12 20:33:46,937 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-12 20:33:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:33:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-12 20:33:46,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:33:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:33:46,940 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:33:47,090 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:33:47,092 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:33:47,220 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:33:47,220 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:33:47,339 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:33:47,340 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 20:33:47,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:47 BoogieIcfgContainer [2024-11-12 20:33:47,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:33:47,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:33:47,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:33:47,352 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:33:47,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:33:46" (1/3) ... [2024-11-12 20:33:47,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc910d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:33:47, skipping insertion in model container [2024-11-12 20:33:47,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:33:46" (2/3) ... [2024-11-12 20:33:47,353 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc910d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:33:47, skipping insertion in model container [2024-11-12 20:33:47,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:47" (3/3) ... [2024-11-12 20:33:47,354 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2024-11-12 20:33:47,372 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:33:47,373 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-12 20:33:47,374 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:33:47,419 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-12 20:33:47,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2024-11-12 20:33:47,474 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-12 20:33:47,474 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:33:47,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-12 20:33:47,477 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow [2024-11-12 20:33:47,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow [2024-11-12 20:33:47,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:33:47,495 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;@2fb04bd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:33:47,495 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-12 20:33:47,502 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:33:47,503 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2024-11-12 20:33:47,503 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:33:47,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:33:47,504 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:33:47,504 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:33:47,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:33:47,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1989862501, now seen corresponding path program 1 times [2024-11-12 20:33:47,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:33:47,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708064749] [2024-11-12 20:33:47,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:33:47,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:33:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:33:47,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:33:47,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:33:47,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708064749] [2024-11-12 20:33:47,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708064749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:33:47,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:33:47,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 20:33:47,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672600803] [2024-11-12 20:33:47,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:33:47,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:33:47,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:33:47,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:33:47,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:33:47,824 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2024-11-12 20:33:47,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:33:47,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:33:47,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2024-11-12 20:33:47,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:33:47,956 INFO L124 PetriNetUnfolderBase]: 84/172 cut-off events. [2024-11-12 20:33:47,956 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 20:33:47,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 172 events. 84/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 736 event pairs, 24 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 333. Up to 153 conditions per place. [2024-11-12 20:33:47,962 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 17 selfloop transitions, 3 changer transitions 2/35 dead transitions. [2024-11-12 20:33:47,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 123 flow [2024-11-12 20:33:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:33:47,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:33:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-12 20:33:47,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7888888888888889 [2024-11-12 20:33:47,992 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 71 transitions. [2024-11-12 20:33:47,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 123 flow [2024-11-12 20:33:47,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:33:47,997 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow [2024-11-12 20:33:47,999 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-12 20:33:48,003 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-12 20:33:48,003 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow [2024-11-12 20:33:48,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:33:48,003 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:33:48,003 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:33:48,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:33:48,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:33:48,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:33:48,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1983760114, now seen corresponding path program 1 times [2024-11-12 20:33:48,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:33:48,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083163832] [2024-11-12 20:33:48,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:33:48,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:33:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:33:48,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:33:48,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:33:48,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083163832] [2024-11-12 20:33:48,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083163832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:33:48,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:33:48,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:33:48,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793233985] [2024-11-12 20:33:48,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:33:48,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:33:48,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:33:48,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:33:48,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:33:48,165 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2024-11-12 20:33:48,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-12 20:33:48,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:33:48,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2024-11-12 20:33:48,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:33:48,234 INFO L124 PetriNetUnfolderBase]: 36/92 cut-off events. [2024-11-12 20:33:48,235 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-12 20:33:48,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 92 events. 36/92 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 311 event pairs, 8 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 209. Up to 72 conditions per place. [2024-11-12 20:33:48,237 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 15 selfloop transitions, 3 changer transitions 0/31 dead transitions. [2024-11-12 20:33:48,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 31 transitions, 117 flow [2024-11-12 20:33:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:33:48,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:33:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 80 transitions. [2024-11-12 20:33:48,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-12 20:33:48,239 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 80 transitions. [2024-11-12 20:33:48,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 31 transitions, 117 flow [2024-11-12 20:33:48,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 31 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:33:48,242 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow [2024-11-12 20:33:48,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-12 20:33:48,243 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-12 20:33:48,243 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow [2024-11-12 20:33:48,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-12 20:33:48,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:33:48,244 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:33:48,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:33:48,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-12 20:33:48,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:33:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1983760113, now seen corresponding path program 1 times [2024-11-12 20:33:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:33:48,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734047505] [2024-11-12 20:33:48,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:33:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:33:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:33:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:33:48,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:33:48,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734047505] [2024-11-12 20:33:48,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734047505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:33:48,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:33:48,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:33:48,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548350808] [2024-11-12 20:33:48,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:33:48,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:33:48,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:33:48,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:33:48,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:33:48,363 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 30 [2024-11-12 20:33:48,364 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-12 20:33:48,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:33:48,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 30 [2024-11-12 20:33:48,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:33:48,416 INFO L124 PetriNetUnfolderBase]: 16/56 cut-off events. [2024-11-12 20:33:48,417 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-12 20:33:48,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 56 events. 16/56 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 156 event pairs, 0 based on Foata normal form. 16/66 useless extension candidates. Maximal degree in co-relation 121. Up to 36 conditions per place. [2024-11-12 20:33:48,418 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-11-12 20:33:48,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 108 flow [2024-11-12 20:33:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:33:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:33:48,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2024-11-12 20:33:48,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-12 20:33:48,420 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 78 transitions. [2024-11-12 20:33:48,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 108 flow [2024-11-12 20:33:48,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 29 transitions, 101 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:33:48,422 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-11-12 20:33:48,422 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-11-12 20:33:48,423 INFO L279 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-11-12 20:33:48,423 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-11-12 20:33:48,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-12 20:33:48,426 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-12 20:33:48,427 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-12 20:33:48,427 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-12 20:33:48,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-12 20:33:48,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-12 20:33:48,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-12 20:33:48,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-12 20:33:48,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-12 20:33:48,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-12 20:33:48,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-12 20:33:48,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:33:48,430 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-12 20:33:48,440 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 20:33:48,440 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:33:48,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:33:48 BasicIcfg [2024-11-12 20:33:48,448 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:33:48,449 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:33:48,450 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:33:48,450 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:33:48,450 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:33:47" (3/4) ... [2024-11-12 20:33:48,452 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 20:33:48,455 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-12 20:33:48,456 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-12 20:33:48,461 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-12 20:33:48,462 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-12 20:33:48,462 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-12 20:33:48,462 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 20:33:48,551 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:33:48,552 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 20:33:48,552 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:33:48,553 INFO L158 Benchmark]: Toolchain (without parser) took 2269.79ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 133.8MB in the beginning and 130.3MB in the end (delta: 3.4MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-11-12 20:33:48,553 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 163.6MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:33:48,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.04ms. Allocated memory is still 163.6MB. Free memory was 133.8MB in the beginning and 111.5MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 20:33:48,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.01ms. Allocated memory is still 163.6MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:33:48,555 INFO L158 Benchmark]: Boogie Preprocessor took 40.33ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:33:48,555 INFO L158 Benchmark]: RCFGBuilder took 506.78ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 86.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-12 20:33:48,556 INFO L158 Benchmark]: TraceAbstraction took 1102.31ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 85.7MB in the beginning and 134.5MB in the end (delta: -48.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:33:48,557 INFO L158 Benchmark]: Witness Printer took 103.21ms. Allocated memory is still 201.3MB. Free memory was 134.5MB in the beginning and 130.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 20:33:48,558 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 163.6MB. Free memory is still 134.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.04ms. Allocated memory is still 163.6MB. Free memory was 133.8MB in the beginning and 111.5MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.01ms. Allocated memory is still 163.6MB. Free memory was 111.5MB in the beginning and 109.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.33ms. Allocated memory is still 163.6MB. Free memory was 109.4MB in the beginning and 107.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.78ms. Allocated memory is still 163.6MB. Free memory was 107.3MB in the beginning and 86.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1102.31ms. Allocated memory was 163.6MB in the beginning and 201.3MB in the end (delta: 37.7MB). Free memory was 85.7MB in the beginning and 134.5MB in the end (delta: -48.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 103.21ms. Allocated memory is still 201.3MB. Free memory was 134.5MB in the beginning and 130.3MB 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: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 732]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 749]: 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, 53 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: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 94 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=77occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 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! [2024-11-12 20:33:48,592 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