./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind1-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d 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-theta/unwind1-100.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 d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:59:13,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:59:13,290 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:59:13,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:59:13,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:59:13,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:59:13,331 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:59:13,331 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:59:13,332 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:59:13,333 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:59:13,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:59:13,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:59:13,334 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:59:13,335 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:59:13,335 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:59:13,335 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:59:13,336 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:59:13,336 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:59:13,338 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:59:13,339 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:59:13,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:59:13,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:59:13,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:59:13,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:59:13,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:59:13,341 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:59:13,342 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:59:13,342 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:59:13,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:59:13,342 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:59:13,342 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:59:13,343 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:59:13,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:59:13,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:59:13,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:59:13,344 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:59:13,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:59:13,345 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:59:13,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:59:13,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:59:13,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:59:13,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:59:13,347 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:59:13,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:59:13,347 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 [2024-11-17 07:59:13,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:59:13,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:59:13,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:59:13,635 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:59:13,635 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:59:13,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-17 07:59:15,049 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:59:15,296 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:59:15,298 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-17 07:59:15,316 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e635023/ab0fc1f25dda481db39590cc0624a3aa/FLAGff9072142 [2024-11-17 07:59:15,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63e635023/ab0fc1f25dda481db39590cc0624a3aa [2024-11-17 07:59:15,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:59:15,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:59:15,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:59:15,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:59:15,614 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:59:15,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:59:15" (1/1) ... [2024-11-17 07:59:15,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d3bb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:15, skipping insertion in model container [2024-11-17 07:59:15,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:59:15" (1/1) ... [2024-11-17 07:59:15,659 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:59:16,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:59:16,044 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:59:16,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:59:16,154 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:59:16,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16 WrapperNode [2024-11-17 07:59:16,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:59:16,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:59:16,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:59:16,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:59:16,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,200 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2024-11-17 07:59:16,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:59:16,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:59:16,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:59:16,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:59:16,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,214 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,228 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]. [2024-11-17 07:59:16,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,235 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,237 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,238 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:59:16,245 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:59:16,245 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:59:16,245 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:59:16,249 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (1/1) ... [2024-11-17 07:59:16,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:59:16,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:16,283 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) [2024-11-17 07:59:16,286 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 [2024-11-17 07:59:16,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:59:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-17 07:59:16,326 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-17 07:59:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-17 07:59:16,326 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-17 07:59:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:59:16,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:59:16,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:59:16,328 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:59:16,444 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:59:16,446 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:59:16,584 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:59:16,587 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:59:16,716 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:59:16,717 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:59:16,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:59:16 BoogieIcfgContainer [2024-11-17 07:59:16,717 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:59:16,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:59:16,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:59:16,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:59:16,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:59:15" (1/3) ... [2024-11-17 07:59:16,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff76a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:59:16, skipping insertion in model container [2024-11-17 07:59:16,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:16" (2/3) ... [2024-11-17 07:59:16,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ff76a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:59:16, skipping insertion in model container [2024-11-17 07:59:16,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:59:16" (3/3) ... [2024-11-17 07:59:16,730 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-100.i [2024-11-17 07:59:16,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:59:16,745 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-17 07:59:16,745 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:59:16,782 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:59:16,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 30 transitions, 74 flow [2024-11-17 07:59:16,835 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-11-17 07:59:16,835 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:59:16,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 28 events. 3/28 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2024-11-17 07:59:16,842 INFO L82 GeneralOperation]: Start removeDead. Operand has 34 places, 30 transitions, 74 flow [2024-11-17 07:59:16,845 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 30 places, 26 transitions, 61 flow [2024-11-17 07:59:16,857 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:59:16,865 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;@b81bb2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:59:16,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-17 07:59:16,870 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:59:16,871 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-17 07:59:16,871 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:59:16,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:16,872 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:59:16,875 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-17 07:59:16,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:16,880 INFO L85 PathProgramCache]: Analyzing trace with hash 188036881, now seen corresponding path program 1 times [2024-11-17 07:59:16,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:16,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664044764] [2024-11-17 07:59:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:16,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:17,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:17,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664044764] [2024-11-17 07:59:17,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664044764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:17,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:17,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:59:17,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082415447] [2024-11-17 07:59:17,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:17,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:59:17,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:17,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:59:17,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:59:17,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 07:59:17,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 61 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-17 07:59:17,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:17,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 07:59:17,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:17,223 INFO L124 PetriNetUnfolderBase]: 103/234 cut-off events. [2024-11-17 07:59:17,223 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-17 07:59:17,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 234 events. 103/234 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1045 event pairs, 78 based on Foata normal form. 25/226 useless extension candidates. Maximal degree in co-relation 406. Up to 178 conditions per place. [2024-11-17 07:59:17,227 INFO L140 encePairwiseOnDemand]: 27/30 looper letters, 16 selfloop transitions, 1 changer transitions 0/24 dead transitions. [2024-11-17 07:59:17,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 91 flow [2024-11-17 07:59:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:59:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:59:17,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-11-17 07:59:17,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5111111111111111 [2024-11-17 07:59:17,241 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 61 flow. Second operand 3 states and 46 transitions. [2024-11-17 07:59:17,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 91 flow [2024-11-17 07:59:17,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 24 transitions, 86 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:59:17,245 INFO L231 Difference]: Finished difference. Result has 28 places, 24 transitions, 54 flow [2024-11-17 07:59:17,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=28, PETRI_TRANSITIONS=24} [2024-11-17 07:59:17,251 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-17 07:59:17,252 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 24 transitions, 54 flow [2024-11-17 07:59:17,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-17 07:59:17,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:17,253 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:59:17,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:59:17,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-17 07:59:17,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:17,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1534176168, now seen corresponding path program 1 times [2024-11-17 07:59:17,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:17,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796130386] [2024-11-17 07:59:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:17,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:17,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:17,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796130386] [2024-11-17 07:59:17,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796130386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:17,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:17,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:59:17,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655349278] [2024-11-17 07:59:17,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:17,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:59:17,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:17,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:59:17,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:59:17,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 07:59:17,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 24 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-17 07:59:17,345 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:17,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 07:59:17,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:17,414 INFO L124 PetriNetUnfolderBase]: 89/200 cut-off events. [2024-11-17 07:59:17,415 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:59:17,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 200 events. 89/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 837 event pairs, 66 based on Foata normal form. 8/179 useless extension candidates. Maximal degree in co-relation 365. Up to 154 conditions per place. [2024-11-17 07:59:17,417 INFO L140 encePairwiseOnDemand]: 28/30 looper letters, 14 selfloop transitions, 1 changer transitions 1/23 dead transitions. [2024-11-17 07:59:17,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 84 flow [2024-11-17 07:59:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:59:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:59:17,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 44 transitions. [2024-11-17 07:59:17,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2024-11-17 07:59:17,420 INFO L175 Difference]: Start difference. First operand has 28 places, 24 transitions, 54 flow. Second operand 3 states and 44 transitions. [2024-11-17 07:59:17,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 84 flow [2024-11-17 07:59:17,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 23 transitions, 83 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:59:17,421 INFO L231 Difference]: Finished difference. Result has 28 places, 22 transitions, 51 flow [2024-11-17 07:59:17,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=28, PETRI_TRANSITIONS=22} [2024-11-17 07:59:17,422 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, -2 predicate places. [2024-11-17 07:59:17,423 INFO L471 AbstractCegarLoop]: Abstraction has has 28 places, 22 transitions, 51 flow [2024-11-17 07:59:17,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-17 07:59:17,423 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:17,423 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:17,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:59:17,425 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-17 07:59:17,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:17,426 INFO L85 PathProgramCache]: Analyzing trace with hash 757812266, now seen corresponding path program 1 times [2024-11-17 07:59:17,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:17,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82741167] [2024-11-17 07:59:17,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:17,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:17,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:17,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82741167] [2024-11-17 07:59:17,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82741167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:17,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:17,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:59:17,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911664626] [2024-11-17 07:59:17,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:17,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:59:17,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:17,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:59:17,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:59:17,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 30 [2024-11-17 07:59:17,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 22 transitions, 51 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-17 07:59:17,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:17,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 30 [2024-11-17 07:59:17,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:17,680 INFO L124 PetriNetUnfolderBase]: 48/139 cut-off events. [2024-11-17 07:59:17,680 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:59:17,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 254 conditions, 139 events. 48/139 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 538 event pairs, 15 based on Foata normal form. 13/139 useless extension candidates. Maximal degree in co-relation 247. Up to 45 conditions per place. [2024-11-17 07:59:17,682 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 15 selfloop transitions, 3 changer transitions 10/35 dead transitions. [2024-11-17 07:59:17,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 35 transitions, 136 flow [2024-11-17 07:59:17,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:59:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:59:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2024-11-17 07:59:17,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5666666666666667 [2024-11-17 07:59:17,688 INFO L175 Difference]: Start difference. First operand has 28 places, 22 transitions, 51 flow. Second operand 5 states and 85 transitions. [2024-11-17 07:59:17,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 35 transitions, 136 flow [2024-11-17 07:59:17,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 35 transitions, 135 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:59:17,689 INFO L231 Difference]: Finished difference. Result has 33 places, 22 transitions, 65 flow [2024-11-17 07:59:17,690 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=33, PETRI_TRANSITIONS=22} [2024-11-17 07:59:17,690 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 3 predicate places. [2024-11-17 07:59:17,690 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 22 transitions, 65 flow [2024-11-17 07:59:17,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-17 07:59:17,691 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:17,691 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:17,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:59:17,694 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-17 07:59:17,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:17,694 INFO L85 PathProgramCache]: Analyzing trace with hash 273962874, now seen corresponding path program 1 times [2024-11-17 07:59:17,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:17,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117324323] [2024-11-17 07:59:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:17,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:17,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:17,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:17,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117324323] [2024-11-17 07:59:17,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117324323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:17,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:17,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:59:17,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522249729] [2024-11-17 07:59:17,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:17,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:59:17,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:17,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:59:17,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:59:17,766 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 07:59:17,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 22 transitions, 65 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-17 07:59:17,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:17,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 07:59:17,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:17,874 INFO L124 PetriNetUnfolderBase]: 54/143 cut-off events. [2024-11-17 07:59:17,875 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-17 07:59:17,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 143 events. 54/143 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 428 event pairs, 35 based on Foata normal form. 5/137 useless extension candidates. Maximal degree in co-relation 305. Up to 91 conditions per place. [2024-11-17 07:59:17,877 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 22 selfloop transitions, 3 changer transitions 0/30 dead transitions. [2024-11-17 07:59:17,877 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 137 flow [2024-11-17 07:59:17,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:59:17,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:59:17,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2024-11-17 07:59:17,880 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-17 07:59:17,880 INFO L175 Difference]: Start difference. First operand has 33 places, 22 transitions, 65 flow. Second operand 4 states and 63 transitions. [2024-11-17 07:59:17,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 137 flow [2024-11-17 07:59:17,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 30 transitions, 123 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-17 07:59:17,884 INFO L231 Difference]: Finished difference. Result has 32 places, 24 transitions, 77 flow [2024-11-17 07:59:17,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=77, PETRI_PLACES=32, PETRI_TRANSITIONS=24} [2024-11-17 07:59:17,885 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2024-11-17 07:59:17,886 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 24 transitions, 77 flow [2024-11-17 07:59:17,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2024-11-17 07:59:17,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:17,886 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:17,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:59:17,887 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-17 07:59:17,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:17,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1756009196, now seen corresponding path program 1 times [2024-11-17 07:59:17,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:17,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483857772] [2024-11-17 07:59:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:17,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:18,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:18,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483857772] [2024-11-17 07:59:18,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483857772] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:18,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198111058] [2024-11-17 07:59:18,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:18,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:18,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:18,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:18,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:59:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:18,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:59:18,116 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:18,200 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:59:18,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198111058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:18,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:59:18,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:59:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851617411] [2024-11-17 07:59:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:18,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:59:18,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:18,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:59:18,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:59:18,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 07:59:18,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 24 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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) [2024-11-17 07:59:18,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:18,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 07:59:18,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:18,338 INFO L124 PetriNetUnfolderBase]: 49/136 cut-off events. [2024-11-17 07:59:18,339 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-17 07:59:18,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 136 events. 49/136 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 398 event pairs, 15 based on Foata normal form. 5/131 useless extension candidates. Maximal degree in co-relation 300. Up to 46 conditions per place. [2024-11-17 07:59:18,343 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 25 selfloop transitions, 5 changer transitions 0/35 dead transitions. [2024-11-17 07:59:18,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 35 transitions, 161 flow [2024-11-17 07:59:18,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:59:18,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:59:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 85 transitions. [2024-11-17 07:59:18,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2024-11-17 07:59:18,347 INFO L175 Difference]: Start difference. First operand has 32 places, 24 transitions, 77 flow. Second operand 6 states and 85 transitions. [2024-11-17 07:59:18,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 35 transitions, 161 flow [2024-11-17 07:59:18,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 159 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:59:18,350 INFO L231 Difference]: Finished difference. Result has 35 places, 23 transitions, 81 flow [2024-11-17 07:59:18,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2024-11-17 07:59:18,351 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 5 predicate places. [2024-11-17 07:59:18,351 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 81 flow [2024-11-17 07:59:18,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 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) [2024-11-17 07:59:18,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:18,352 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:18,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 07:59:18,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:18,553 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-17 07:59:18,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:18,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1398289935, now seen corresponding path program 1 times [2024-11-17 07:59:18,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:18,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291399269] [2024-11-17 07:59:18,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:18,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:18,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:18,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291399269] [2024-11-17 07:59:18,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291399269] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:18,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409308627] [2024-11-17 07:59:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:18,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:18,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:18,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:18,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:59:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:18,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:59:18,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:18,770 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:18,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409308627] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:18,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:18,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-17 07:59:18,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190558565] [2024-11-17 07:59:18,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:18,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:59:18,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:18,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:59:18,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:59:18,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 30 [2024-11-17 07:59:18,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 81 flow. Second operand has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 12 states have internal predecessors, (128), 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) [2024-11-17 07:59:18,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:18,853 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 30 [2024-11-17 07:59:18,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:19,008 INFO L124 PetriNetUnfolderBase]: 79/238 cut-off events. [2024-11-17 07:59:19,009 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2024-11-17 07:59:19,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 238 events. 79/238 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 747 event pairs, 30 based on Foata normal form. 15/246 useless extension candidates. Maximal degree in co-relation 542. Up to 81 conditions per place. [2024-11-17 07:59:19,013 INFO L140 encePairwiseOnDemand]: 26/30 looper letters, 39 selfloop transitions, 9 changer transitions 0/53 dead transitions. [2024-11-17 07:59:19,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 53 transitions, 269 flow [2024-11-17 07:59:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:59:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:59:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 141 transitions. [2024-11-17 07:59:19,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47 [2024-11-17 07:59:19,015 INFO L175 Difference]: Start difference. First operand has 35 places, 23 transitions, 81 flow. Second operand 10 states and 141 transitions. [2024-11-17 07:59:19,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 53 transitions, 269 flow [2024-11-17 07:59:19,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 53 transitions, 254 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-17 07:59:19,019 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 136 flow [2024-11-17 07:59:19,019 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=136, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2024-11-17 07:59:19,019 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 13 predicate places. [2024-11-17 07:59:19,020 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 136 flow [2024-11-17 07:59:19,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 12 states have internal predecessors, (128), 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) [2024-11-17 07:59:19,020 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:19,021 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:19,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:59:19,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-17 07:59:19,223 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-17 07:59:19,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:19,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1504673025, now seen corresponding path program 2 times [2024-11-17 07:59:19,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:19,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088573060] [2024-11-17 07:59:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:19,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:19,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088573060] [2024-11-17 07:59:19,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088573060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:19,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729744768] [2024-11-17 07:59:19,394 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:59:19,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:19,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:19,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:19,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:59:19,469 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:59:19,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:59:19,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:59:19,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:19,568 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:59:19,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:59:19,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729744768] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:19,663 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:19,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 19 [2024-11-17 07:59:19,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415697799] [2024-11-17 07:59:19,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:19,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-17 07:59:19,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:19,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-17 07:59:19,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-17 07:59:19,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 30 [2024-11-17 07:59:19,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 136 flow. Second operand has 20 states, 20 states have (on average 7.1) internal successors, (142), 20 states have internal predecessors, (142), 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) [2024-11-17 07:59:19,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:19,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 30 [2024-11-17 07:59:19,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:20,427 INFO L124 PetriNetUnfolderBase]: 214/556 cut-off events. [2024-11-17 07:59:20,428 INFO L125 PetriNetUnfolderBase]: For 888/888 co-relation queries the response was YES. [2024-11-17 07:59:20,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1386 conditions, 556 events. 214/556 cut-off events. For 888/888 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2275 event pairs, 18 based on Foata normal form. 20/571 useless extension candidates. Maximal degree in co-relation 1374. Up to 81 conditions per place. [2024-11-17 07:59:20,430 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 0 selfloop transitions, 0 changer transitions 146/146 dead transitions. [2024-11-17 07:59:20,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 146 transitions, 761 flow [2024-11-17 07:59:20,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-17 07:59:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2024-11-17 07:59:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 312 transitions. [2024-11-17 07:59:20,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3151515151515151 [2024-11-17 07:59:20,433 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 136 flow. Second operand 33 states and 312 transitions. [2024-11-17 07:59:20,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 146 transitions, 761 flow [2024-11-17 07:59:20,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 146 transitions, 717 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-17 07:59:20,438 INFO L231 Difference]: Finished difference. Result has 68 places, 0 transitions, 0 flow [2024-11-17 07:59:20,438 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=0, PETRI_PLACES=68, PETRI_TRANSITIONS=0} [2024-11-17 07:59:20,438 INFO L277 CegarLoopForPetriNet]: 30 programPoint places, 38 predicate places. [2024-11-17 07:59:20,438 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 0 transitions, 0 flow [2024-11-17 07:59:20,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 7.1) internal successors, (142), 20 states have internal predecessors, (142), 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) [2024-11-17 07:59:20,443 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-17 07:59:20,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2024-11-17 07:59:20,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-17 07:59:20,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-17 07:59:20,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-17 07:59:20,444 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-17 07:59:20,445 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-17 07:59:20,445 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-17 07:59:20,445 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-17 07:59:20,445 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-17 07:59:20,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:59:20,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:20,646 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-17 07:59:20,652 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:59:20,652 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:59:20,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:59:20 BasicIcfg [2024-11-17 07:59:20,657 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:59:20,661 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:59:20,661 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:59:20,662 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:59:20,663 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:59:16" (3/4) ... [2024-11-17 07:59:20,664 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:59:20,667 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-17 07:59:20,667 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-17 07:59:20,670 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-17 07:59:20,670 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-17 07:59:20,670 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 07:59:20,670 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 07:59:20,749 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:59:20,751 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:59:20,751 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:59:20,752 INFO L158 Benchmark]: Toolchain (without parser) took 5143.34ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 108.8MB in the beginning and 92.0MB in the end (delta: 16.8MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2024-11-17 07:59:20,753 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 163.6MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:59:20,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.96ms. Allocated memory is still 163.6MB. Free memory was 108.4MB in the beginning and 85.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 07:59:20,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.90ms. Allocated memory is still 163.6MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:59:20,754 INFO L158 Benchmark]: Boogie Preprocessor took 43.19ms. Allocated memory is still 163.6MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:59:20,755 INFO L158 Benchmark]: IcfgBuilder took 472.58ms. Allocated memory is still 163.6MB. Free memory was 81.6MB in the beginning and 127.6MB in the end (delta: -46.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-11-17 07:59:20,755 INFO L158 Benchmark]: TraceAbstraction took 3934.82ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 127.2MB in the beginning and 97.0MB in the end (delta: 30.2MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. [2024-11-17 07:59:20,755 INFO L158 Benchmark]: Witness Printer took 89.75ms. Allocated memory is still 220.2MB. Free memory was 96.2MB in the beginning and 92.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:59:20,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95ms. Allocated memory is still 163.6MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.96ms. Allocated memory is still 163.6MB. Free memory was 108.4MB in the beginning and 85.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.90ms. Allocated memory is still 163.6MB. Free memory was 85.3MB in the beginning and 83.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.19ms. Allocated memory is still 163.6MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 472.58ms. Allocated memory is still 163.6MB. Free memory was 81.6MB in the beginning and 127.6MB in the end (delta: -46.0MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3934.82ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 127.2MB in the beginning and 97.0MB in the end (delta: 30.2MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. * Witness Printer took 89.75ms. Allocated memory is still 220.2MB. Free memory was 96.2MB in the beginning and 92.0MB 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: 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, 49 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: 3.8s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 578 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 540 mSDsluCounter, 217 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 201 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 715 IncrementalHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 16 mSDtfsCounter, 715 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 168 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=6, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 148 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 9 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 67/138 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! [2024-11-17 07:59:20,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE