./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 14:05:57,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 14:05:57,966 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 14:05:57,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 14:05:57,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 14:05:57,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 14:05:57,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 14:05:57,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 14:05:57,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 14:05:57,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 14:05:57,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 14:05:57,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 14:05:57,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 14:05:57,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 14:05:57,998 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 14:05:57,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 14:05:57,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 14:05:57,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 14:05:57,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 14:05:57,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 14:05:58,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 14:05:58,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 14:05:58,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 14:05:58,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 14:05:58,004 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 14:05:58,006 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 14:05:58,006 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 14:05:58,007 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 14:05:58,007 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 14:05:58,007 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 14:05:58,007 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 14:05:58,007 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 14:05:58,007 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 14:05:58,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 14:05:58,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:05:58,008 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 14:05:58,008 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 14:05:58,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 14:05:58,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 14:05:58,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 14:05:58,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 14:05:58,009 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 14:05:58,010 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 14:05:58,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 14:05:58,010 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d89bfe4b4c4586e423a8e3ebdbb120ac074219803de53807cd9f075553c6e3a [2024-10-13 14:05:58,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 14:05:58,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 14:05:58,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 14:05:58,260 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 14:05:58,260 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 14:05:58,261 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-10-13 14:05:59,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 14:05:59,665 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 14:05:59,665 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec.c [2024-10-13 14:05:59,671 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd772a161/3b5f1f094cc6412bbaed09cd220eb682/FLAG380a0b879 [2024-10-13 14:06:00,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd772a161/3b5f1f094cc6412bbaed09cd220eb682 [2024-10-13 14:06:00,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 14:06:00,089 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 14:06:00,090 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 14:06:00,090 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 14:06:00,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 14:06:00,094 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,095 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639f3a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00, skipping insertion in model container [2024-10-13 14:06:00,095 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 14:06:00,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:06:00,270 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 14:06:00,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 14:06:00,296 INFO L204 MainTranslator]: Completed translation [2024-10-13 14:06:00,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00 WrapperNode [2024-10-13 14:06:00,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 14:06:00,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 14:06:00,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 14:06:00,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 14:06:00,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,324 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 33 [2024-10-13 14:06:00,325 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 14:06:00,325 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 14:06:00,325 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 14:06:00,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 14:06:00,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,335 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,343 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-10-13 14:06:00,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,351 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 14:06:00,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 14:06:00,352 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 14:06:00,352 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 14:06:00,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (1/1) ... [2024-10-13 14:06:00,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 14:06:00,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:00,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 14:06:00,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 14:06:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 14:06:00,415 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 14:06:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure check [2024-10-13 14:06:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 14:06:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 14:06:00,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-13 14:06:00,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-13 14:06:00,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 14:06:00,478 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 14:06:00,480 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 14:06:00,628 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-10-13 14:06:00,628 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 14:06:00,664 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 14:06:00,664 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 14:06:00,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:06:00 BoogieIcfgContainer [2024-10-13 14:06:00,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 14:06:00,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 14:06:00,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 14:06:00,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 14:06:00,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 02:06:00" (1/3) ... [2024-10-13 14:06:00,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3432dd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:06:00, skipping insertion in model container [2024-10-13 14:06:00,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 02:06:00" (2/3) ... [2024-10-13 14:06:00,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3432dd87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 02:06:00, skipping insertion in model container [2024-10-13 14:06:00,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:06:00" (3/3) ... [2024-10-13 14:06:00,672 INFO L112 eAbstractionObserver]: Analyzing ICFG elimination_max_rec.c [2024-10-13 14:06:00,685 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 14:06:00,685 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-13 14:06:00,726 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 14:06:00,731 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;@5c6bc0a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 14:06:00,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-13 14:06:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 23 states have (on average 1.434782608695652) internal successors, (33), 29 states have internal predecessors, (33), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 14:06:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 14:06:00,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:00,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:00,740 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:00,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:00,745 INFO L85 PathProgramCache]: Analyzing trace with hash -2021493796, now seen corresponding path program 1 times [2024-10-13 14:06:00,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469124103] [2024-10-13 14:06:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:00,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:00,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:00,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:00,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469124103] [2024-10-13 14:06:00,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469124103] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:00,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:00,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 14:06:00,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187624221] [2024-10-13 14:06:00,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:00,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 14:06:00,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:00,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 14:06:00,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 14:06:00,910 INFO L87 Difference]: Start difference. First operand has 39 states, 23 states have (on average 1.434782608695652) internal successors, (33), 29 states have internal predecessors, (33), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 14:06:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:00,942 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2024-10-13 14:06:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 14:06:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-10-13 14:06:00,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:00,950 INFO L225 Difference]: With dead ends: 76 [2024-10-13 14:06:00,950 INFO L226 Difference]: Without dead ends: 30 [2024-10-13 14:06:00,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 14:06:00,957 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:00,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:00,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-13 14:06:00,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-13 14:06:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 24 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:00,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2024-10-13 14:06:00,988 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 8 [2024-10-13 14:06:00,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:00,989 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2024-10-13 14:06:00,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 14:06:00,990 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2024-10-13 14:06:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-13 14:06:00,991 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:00,991 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:00,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 14:06:00,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:00,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:00,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2019646754, now seen corresponding path program 1 times [2024-10-13 14:06:00,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:00,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299595310] [2024-10-13 14:06:00,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:00,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:01,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:01,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:01,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299595310] [2024-10-13 14:06:01,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299595310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:01,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:01,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 14:06:01,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601717953] [2024-10-13 14:06:01,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:01,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 14:06:01,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:01,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 14:06:01,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 14:06:01,179 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 14:06:01,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:01,201 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-10-13 14:06:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 14:06:01,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2024-10-13 14:06:01,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:01,202 INFO L225 Difference]: With dead ends: 30 [2024-10-13 14:06:01,202 INFO L226 Difference]: Without dead ends: 28 [2024-10-13 14:06:01,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 14:06:01,203 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:01,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 87 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:01,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-13 14:06:01,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-13 14:06:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 22 states have internal predecessors, (23), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:01,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-10-13 14:06:01,211 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 8 [2024-10-13 14:06:01,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:01,211 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-10-13 14:06:01,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-13 14:06:01,212 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-10-13 14:06:01,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-13 14:06:01,212 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:01,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:01,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 14:06:01,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:01,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:01,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1280588809, now seen corresponding path program 1 times [2024-10-13 14:06:01,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:01,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293194791] [2024-10-13 14:06:01,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:01,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:01,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:01,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293194791] [2024-10-13 14:06:01,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293194791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:01,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:01,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 14:06:01,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637453545] [2024-10-13 14:06:01,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:01,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 14:06:01,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 14:06:01,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 14:06:01,332 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:01,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:01,395 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2024-10-13 14:06:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 14:06:01,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-10-13 14:06:01,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:01,396 INFO L225 Difference]: With dead ends: 43 [2024-10-13 14:06:01,397 INFO L226 Difference]: Without dead ends: 41 [2024-10-13 14:06:01,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 14:06:01,398 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 17 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:01,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 84 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:01,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-13 14:06:01,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2024-10-13 14:06:01,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 30 states have internal predecessors, (34), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 14:06:01,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2024-10-13 14:06:01,404 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 20 [2024-10-13 14:06:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:01,405 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2024-10-13 14:06:01,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2024-10-13 14:06:01,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-13 14:06:01,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:01,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:01,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 14:06:01,408 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:01,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:01,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1280589001, now seen corresponding path program 1 times [2024-10-13 14:06:01,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:01,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551190106] [2024-10-13 14:06:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:01,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:01,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:01,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551190106] [2024-10-13 14:06:01,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551190106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:01,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:01,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 14:06:01,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816777066] [2024-10-13 14:06:01,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:01,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 14:06:01,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:01,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 14:06:01,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-13 14:06:01,507 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:01,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:01,593 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2024-10-13 14:06:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 14:06:01,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2024-10-13 14:06:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:01,594 INFO L225 Difference]: With dead ends: 41 [2024-10-13 14:06:01,595 INFO L226 Difference]: Without dead ends: 40 [2024-10-13 14:06:01,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-13 14:06:01,599 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 19 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:01,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 118 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:01,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-10-13 14:06:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2024-10-13 14:06:01,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 30 states have internal predecessors, (33), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 14:06:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2024-10-13 14:06:01,608 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 20 [2024-10-13 14:06:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:01,608 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2024-10-13 14:06:01,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2024-10-13 14:06:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-13 14:06:01,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:01,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:01,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 14:06:01,610 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:01,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:01,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1043553440, now seen corresponding path program 1 times [2024-10-13 14:06:01,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:01,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456338421] [2024-10-13 14:06:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:01,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 14:06:01,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:01,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456338421] [2024-10-13 14:06:01,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456338421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:01,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 14:06:01,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 14:06:01,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509117606] [2024-10-13 14:06:01,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:01,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 14:06:01,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:01,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 14:06:01,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-13 14:06:01,718 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:01,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:01,766 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2024-10-13 14:06:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 14:06:01,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-10-13 14:06:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:01,768 INFO L225 Difference]: With dead ends: 38 [2024-10-13 14:06:01,769 INFO L226 Difference]: Without dead ends: 37 [2024-10-13 14:06:01,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 14:06:01,770 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 17 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:01,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 67 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:01,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-13 14:06:01,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-13 14:06:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 29 states have internal predecessors, (31), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 14:06:01,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2024-10-13 14:06:01,776 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 21 [2024-10-13 14:06:01,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:01,776 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2024-10-13 14:06:01,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-13 14:06:01,777 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2024-10-13 14:06:01,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-13 14:06:01,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:01,777 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:01,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 14:06:01,778 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:01,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:01,778 INFO L85 PathProgramCache]: Analyzing trace with hash 733849789, now seen corresponding path program 1 times [2024-10-13 14:06:01,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:01,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947292990] [2024-10-13 14:06:01,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:01,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 14:06:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:01,943 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:01,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:01,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947292990] [2024-10-13 14:06:01,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947292990] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:01,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288838754] [2024-10-13 14:06:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:01,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:01,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:01,947 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) [2024-10-13 14:06:01,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 14:06:02,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 14:06:02,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:02,083 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 14:06:02,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288838754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 14:06:02,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 14:06:02,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2024-10-13 14:06:02,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308410652] [2024-10-13 14:06:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 14:06:02,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 14:06:02,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 14:06:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-13 14:06:02,085 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 14:06:02,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:02,166 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2024-10-13 14:06:02,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 14:06:02,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 32 [2024-10-13 14:06:02,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:02,169 INFO L225 Difference]: With dead ends: 38 [2024-10-13 14:06:02,169 INFO L226 Difference]: Without dead ends: 37 [2024-10-13 14:06:02,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-13 14:06:02,169 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:02,170 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 89 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 14:06:02,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-13 14:06:02,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2024-10-13 14:06:02,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 28 states have internal predecessors, (30), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 14:06:02,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2024-10-13 14:06:02,174 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 32 [2024-10-13 14:06:02,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:02,174 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2024-10-13 14:06:02,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 14:06:02,175 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2024-10-13 14:06:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-13 14:06:02,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:02,175 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:02,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 14:06:02,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 14:06:02,376 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:02,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:02,377 INFO L85 PathProgramCache]: Analyzing trace with hash 733849981, now seen corresponding path program 1 times [2024-10-13 14:06:02,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:02,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926200033] [2024-10-13 14:06:02,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:02,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 14:06:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:02,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:02,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926200033] [2024-10-13 14:06:02,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926200033] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:02,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945214308] [2024-10-13 14:06:02,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:02,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:02,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:02,495 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) [2024-10-13 14:06:02,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 14:06:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:02,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-13 14:06:02,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:02,635 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:02,635 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:06:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:02,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945214308] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:06:02,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:06:02,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 21 [2024-10-13 14:06:02,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954322267] [2024-10-13 14:06:02,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:06:02,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-13 14:06:02,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:02,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-13 14:06:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=390, Unknown=0, NotChecked=0, Total=462 [2024-10-13 14:06:02,776 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 16 states have internal predecessors, (43), 9 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 14:06:03,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:03,038 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2024-10-13 14:06:03,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-13 14:06:03,040 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 16 states have internal predecessors, (43), 9 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 32 [2024-10-13 14:06:03,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:03,040 INFO L225 Difference]: With dead ends: 38 [2024-10-13 14:06:03,040 INFO L226 Difference]: Without dead ends: 37 [2024-10-13 14:06:03,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=222, Invalid=900, Unknown=0, NotChecked=0, Total=1122 [2024-10-13 14:06:03,041 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 71 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:03,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 165 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:03,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-13 14:06:03,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2024-10-13 14:06:03,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-13 14:06:03,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-10-13 14:06:03,049 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 32 [2024-10-13 14:06:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:03,051 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-10-13 14:06:03,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.0476190476190474) internal successors, (43), 16 states have internal predecessors, (43), 9 states have call successors, (13), 7 states have call predecessors, (13), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-13 14:06:03,052 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-10-13 14:06:03,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-13 14:06:03,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:03,052 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:03,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 14:06:03,253 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,SelfDestructingSolverStorable6 [2024-10-13 14:06:03,254 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:03,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:03,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1274507046, now seen corresponding path program 1 times [2024-10-13 14:06:03,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:03,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405182812] [2024-10-13 14:06:03,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:03,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:03,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:03,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:03,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:03,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:03,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 14:06:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:03,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:03,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405182812] [2024-10-13 14:06:03,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405182812] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:03,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735740490] [2024-10-13 14:06:03,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:03,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:03,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:03,329 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) [2024-10-13 14:06:03,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 14:06:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:03,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-13 14:06:03,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:03,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:06:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-13 14:06:03,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735740490] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:06:03,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:06:03,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 16 [2024-10-13 14:06:03,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558634599] [2024-10-13 14:06:03,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:06:03,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-13 14:06:03,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:03,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-13 14:06:03,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-10-13 14:06:03,479 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 17 states, 16 states have (on average 2.5) internal successors, (40), 12 states have internal predecessors, (40), 6 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 14:06:03,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:03,610 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2024-10-13 14:06:03,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-13 14:06:03,611 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 12 states have internal predecessors, (40), 6 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2024-10-13 14:06:03,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:03,612 INFO L225 Difference]: With dead ends: 70 [2024-10-13 14:06:03,612 INFO L226 Difference]: Without dead ends: 69 [2024-10-13 14:06:03,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2024-10-13 14:06:03,613 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 84 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:03,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 107 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:03,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2024-10-13 14:06:03,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2024-10-13 14:06:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.12) internal successors, (56), 51 states have internal predecessors, (56), 12 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 14:06:03,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2024-10-13 14:06:03,619 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 33 [2024-10-13 14:06:03,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:03,620 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2024-10-13 14:06:03,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.5) internal successors, (40), 12 states have internal predecessors, (40), 6 states have call successors, (11), 6 states have call predecessors, (11), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-13 14:06:03,620 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2024-10-13 14:06:03,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-13 14:06:03,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:03,621 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:03,637 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 14:06:03,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:03,826 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:03,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:03,828 INFO L85 PathProgramCache]: Analyzing trace with hash -81395574, now seen corresponding path program 2 times [2024-10-13 14:06:03,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:03,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799007713] [2024-10-13 14:06:03,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:03,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:04,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:04,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:04,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 14:06:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:04,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 14:06:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:04,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 14:06:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:04,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:06:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:04,127 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-13 14:06:04,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:04,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799007713] [2024-10-13 14:06:04,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799007713] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:04,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145489799] [2024-10-13 14:06:04,128 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 14:06:04,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:04,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:04,129 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 14:06:04,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 14:06:04,192 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-13 14:06:04,193 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:06:04,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-13 14:06:04,196 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:04,278 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-13 14:06:04,278 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:06:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-13 14:06:04,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145489799] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:06:04,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:06:04,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 34 [2024-10-13 14:06:04,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067229746] [2024-10-13 14:06:04,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:06:04,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-10-13 14:06:04,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:04,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-10-13 14:06:04,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=232, Invalid=958, Unknown=0, NotChecked=0, Total=1190 [2024-10-13 14:06:04,512 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 35 states, 34 states have (on average 2.235294117647059) internal successors, (76), 24 states have internal predecessors, (76), 12 states have call successors, (23), 12 states have call predecessors, (23), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 14:06:04,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:04,984 INFO L93 Difference]: Finished difference Result 136 states and 162 transitions. [2024-10-13 14:06:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-13 14:06:04,984 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.235294117647059) internal successors, (76), 24 states have internal predecessors, (76), 12 states have call successors, (23), 12 states have call predecessors, (23), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 69 [2024-10-13 14:06:04,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:04,987 INFO L225 Difference]: With dead ends: 136 [2024-10-13 14:06:04,987 INFO L226 Difference]: Without dead ends: 135 [2024-10-13 14:06:04,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1060 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=830, Invalid=3202, Unknown=0, NotChecked=0, Total=4032 [2024-10-13 14:06:04,989 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 270 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:04,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 206 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 14:06:04,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-10-13 14:06:05,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2024-10-13 14:06:05,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 98 states have (on average 1.1224489795918366) internal successors, (110), 99 states have internal predecessors, (110), 24 states have call successors, (24), 13 states have call predecessors, (24), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 14:06:05,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2024-10-13 14:06:05,007 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 69 [2024-10-13 14:06:05,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:05,007 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2024-10-13 14:06:05,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.235294117647059) internal successors, (76), 24 states have internal predecessors, (76), 12 states have call successors, (23), 12 states have call predecessors, (23), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-13 14:06:05,008 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2024-10-13 14:06:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-13 14:06:05,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 14:06:05,009 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:05,022 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 14:06:05,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:05,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-13 14:06:05,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 14:06:05,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1755677358, now seen corresponding path program 3 times [2024-10-13 14:06:05,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 14:06:05,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082218466] [2024-10-13 14:06:05,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 14:06:05,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 14:06:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:05,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-13 14:06:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:05,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-13 14:06:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:05,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 14:06:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:05,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 14:06:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-13 14:06:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-13 14:06:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-13 14:06:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-13 14:06:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-13 14:06:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 14:06:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-13 14:06:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-13 14:06:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 14:06:06,018 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 430 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-13 14:06:06,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 14:06:06,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082218466] [2024-10-13 14:06:06,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082218466] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 14:06:06,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720570652] [2024-10-13 14:06:06,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-13 14:06:06,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 14:06:06,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 14:06:06,020 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 14:06:06,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 14:06:06,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-13 14:06:06,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 14:06:06,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-13 14:06:06,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 14:06:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-10-13 14:06:06,305 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 14:06:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-10-13 14:06:06,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720570652] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 14:06:06,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 14:06:06,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 6, 6] total 44 [2024-10-13 14:06:06,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172424062] [2024-10-13 14:06:06,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 14:06:06,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-10-13 14:06:06,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 14:06:06,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-10-13 14:06:06,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=1679, Unknown=0, NotChecked=0, Total=1980 [2024-10-13 14:06:06,522 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand has 45 states, 44 states have (on average 2.409090909090909) internal successors, (106), 32 states have internal predecessors, (106), 18 states have call successors, (33), 14 states have call predecessors, (33), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-13 14:06:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 14:06:09,381 INFO L93 Difference]: Finished difference Result 279 states and 329 transitions. [2024-10-13 14:06:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2024-10-13 14:06:09,382 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.409090909090909) internal successors, (106), 32 states have internal predecessors, (106), 18 states have call successors, (33), 14 states have call predecessors, (33), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 141 [2024-10-13 14:06:09,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 14:06:09,385 INFO L225 Difference]: With dead ends: 279 [2024-10-13 14:06:09,385 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 14:06:09,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9950 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=5785, Invalid=25015, Unknown=0, NotChecked=0, Total=30800 [2024-10-13 14:06:09,396 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 729 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-13 14:06:09,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 245 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-13 14:06:09,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 14:06:09,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 14:06:09,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 14:06:09,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 14:06:09,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 141 [2024-10-13 14:06:09,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 14:06:09,398 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 14:06:09,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.409090909090909) internal successors, (106), 32 states have internal predecessors, (106), 18 states have call successors, (33), 14 states have call predecessors, (33), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-13 14:06:09,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 14:06:09,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 14:06:09,401 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-10-13 14:06:09,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-10-13 14:06:09,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-10-13 14:06:09,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-10-13 14:06:09,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-10-13 14:06:09,402 INFO L782 garLoopResultBuilder]: Registering result SAFE for location checkErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-10-13 14:06:09,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-13 14:06:09,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-13 14:06:09,609 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 14:06:09,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 14:06:11,846 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 14:06:11,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 02:06:11 BoogieIcfgContainer [2024-10-13 14:06:11,858 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 14:06:11,858 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 14:06:11,858 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 14:06:11,858 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 14:06:11,858 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 02:06:00" (3/4) ... [2024-10-13 14:06:11,860 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 14:06:11,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-13 14:06:11,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2024-10-13 14:06:11,863 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-10-13 14:06:11,865 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-10-13 14:06:11,866 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-13 14:06:11,866 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-13 14:06:11,866 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 14:06:11,932 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 14:06:11,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 14:06:11,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 14:06:11,933 INFO L158 Benchmark]: Toolchain (without parser) took 11844.30ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 120.1MB in the beginning and 103.9MB in the end (delta: 16.2MB). Peak memory consumption was 143.8MB. Max. memory is 16.1GB. [2024-10-13 14:06:11,933 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 77.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 14:06:11,934 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.78ms. Allocated memory is still 169.9MB. Free memory was 119.8MB in the beginning and 107.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 14:06:11,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.49ms. Allocated memory is still 169.9MB. Free memory was 107.7MB in the beginning and 106.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 14:06:11,934 INFO L158 Benchmark]: Boogie Preprocessor took 26.08ms. Allocated memory is still 169.9MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 14:06:11,934 INFO L158 Benchmark]: RCFGBuilder took 313.27ms. Allocated memory is still 169.9MB. Free memory was 104.0MB in the beginning and 131.9MB in the end (delta: -27.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 14:06:11,935 INFO L158 Benchmark]: TraceAbstraction took 11191.50ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 130.8MB in the beginning and 109.1MB in the end (delta: 21.7MB). Peak memory consumption was 170.5MB. Max. memory is 16.1GB. [2024-10-13 14:06:11,935 INFO L158 Benchmark]: Witness Printer took 74.87ms. Allocated memory is still 297.8MB. Free memory was 108.1MB in the beginning and 103.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 14:06:11,936 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory was 66.4MB in the beginning and 66.3MB in the end (delta: 77.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.78ms. Allocated memory is still 169.9MB. Free memory was 119.8MB in the beginning and 107.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.49ms. Allocated memory is still 169.9MB. Free memory was 107.7MB in the beginning and 106.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.08ms. Allocated memory is still 169.9MB. Free memory was 106.1MB in the beginning and 104.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.27ms. Allocated memory is still 169.9MB. Free memory was 104.0MB in the beginning and 131.9MB in the end (delta: -27.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 11191.50ms. Allocated memory was 169.9MB in the beginning and 297.8MB in the end (delta: 127.9MB). Free memory was 130.8MB in the beginning and 109.1MB in the end (delta: 21.7MB). Peak memory consumption was 170.5MB. Max. memory is 16.1GB. * Witness Printer took 74.87ms. Allocated memory is still 297.8MB. Free memory was 108.1MB in the beginning and 103.9MB 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1238 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1238 mSDsluCounter, 1208 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 991 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1052 IncrementalHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 217 mSDtfsCounter, 1052 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 947 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 331 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11391 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=9, InterpolantAutomatonStates: 243, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 691 NumberOfCodeBlocks, 691 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 947 ConstructedInterpolants, 0 QuantifiedInterpolants, 2069 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1262 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 19 InterpolantComputations, 6 PerfectInterpolantSequences, 1582/2378 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 6 specifications checked. All of them hold - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 16]: Procedure Contract for check Derived contract for procedure check. Requires: ((((1 <= y) && (1 <= x)) && (y <= 2147483646)) || ((y <= 2147483646) && (x == 0))) Ensures: ((((1 <= y) && (1 <= x)) && (y <= 2147483646)) || ((y <= 2147483646) && (x == 0))) RESULT: Ultimate proved your program to be correct! [2024-10-13 14:06:11,957 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