./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 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/nla-digbench-scaling/fermat2-ll_unwindbound10.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 96b71e4fe20331af08d1b5394215c6ca1c246124118142d0900823a256b0e31d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:12:34,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:12:34,619 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:12:34,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:12:34,624 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:12:34,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:12:34,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:12:34,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:12:34,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:12:34,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:12:34,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:12:34,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:12:34,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:12:34,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:12:34,658 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:12:34,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:12:34,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:12:34,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:12:34,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:12:34,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:12:34,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:12:34,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:12:34,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:12:34,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:12:34,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:12:34,663 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:12:34,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:12:34,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:12:34,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:12:34,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:12:34,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:12:34,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:12:34,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:12:34,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:12:34,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:12:34,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:12:34,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:12:34,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:12:34,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:12:34,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:12:34,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:12:34,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:12:34,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:12:34,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:12:34,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96b71e4fe20331af08d1b5394215c6ca1c246124118142d0900823a256b0e31d [2024-10-24 20:12:34,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:12:34,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:12:34,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:12:34,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:12:34,941 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:12:34,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c [2024-10-24 20:12:36,423 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:12:36,600 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:12:36,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_unwindbound10.c [2024-10-24 20:12:36,608 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35df0664d/54c1f824800a4d9ea6390b9a37c2b6cd/FLAGcc862c714 [2024-10-24 20:12:36,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35df0664d/54c1f824800a4d9ea6390b9a37c2b6cd [2024-10-24 20:12:37,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:12:37,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:12:37,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:12:37,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:12:37,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:12:37,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:12:36" (1/1) ... [2024-10-24 20:12:37,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c22c2c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37, skipping insertion in model container [2024-10-24 20:12:37,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:12:36" (1/1) ... [2024-10-24 20:12:37,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:12:37,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:12:37,238 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:12:37,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:12:37,273 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:12:37,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37 WrapperNode [2024-10-24 20:12:37,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:12:37,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:12:37,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:12:37,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:12:37,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,312 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2024-10-24 20:12:37,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:12:37,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:12:37,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:12:37,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:12:37,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,324 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,342 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 20:12:37,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,347 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,352 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:12:37,355 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:12:37,355 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:12:37,355 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:12:37,356 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (1/1) ... [2024-10-24 20:12:37,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:12:37,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:37,392 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) [2024-10-24 20:12:37,398 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 [2024-10-24 20:12:37,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:12:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 20:12:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 20:12:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:12:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:12:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:12:37,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:12:37,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:12:37,513 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:12:37,517 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:12:37,892 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-10-24 20:12:37,892 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:12:37,922 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:12:37,922 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 20:12:37,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:12:37 BoogieIcfgContainer [2024-10-24 20:12:37,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:12:37,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:12:37,927 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:12:37,930 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:12:37,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:12:36" (1/3) ... [2024-10-24 20:12:37,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d95819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:12:37, skipping insertion in model container [2024-10-24 20:12:37,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:12:37" (2/3) ... [2024-10-24 20:12:37,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d95819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:12:37, skipping insertion in model container [2024-10-24 20:12:37,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:12:37" (3/3) ... [2024-10-24 20:12:37,934 INFO L112 eAbstractionObserver]: Analyzing ICFG fermat2-ll_unwindbound10.c [2024-10-24 20:12:37,953 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:12:37,953 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2024-10-24 20:12:38,028 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:12:38,034 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;@7647b661, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:12:38,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-10-24 20:12:38,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 128 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:12:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-10-24 20:12:38,042 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:38,042 INFO L215 NwaCegarLoop]: trace histogram [1, 1] [2024-10-24 20:12:38,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:38,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:38,048 INFO L85 PathProgramCache]: Analyzing trace with hash 6575, now seen corresponding path program 1 times [2024-10-24 20:12:38,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:38,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857960285] [2024-10-24 20:12:38,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:38,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:12:38,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:38,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857960285] [2024-10-24 20:12:38,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857960285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:38,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:38,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 20:12:38,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810190293] [2024-10-24 20:12:38,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:38,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:12:38,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:38,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:12:38,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:38,221 INFO L87 Difference]: Start difference. First operand has 135 states, 70 states have (on average 1.9142857142857144) internal successors, (134), 128 states have internal predecessors, (134), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-24 20:12:38,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:38,304 INFO L93 Difference]: Finished difference Result 249 states and 273 transitions. [2024-10-24 20:12:38,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:12:38,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) Word has length 2 [2024-10-24 20:12:38,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:38,318 INFO L225 Difference]: With dead ends: 249 [2024-10-24 20:12:38,318 INFO L226 Difference]: Without dead ends: 122 [2024-10-24 20:12:38,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:38,324 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 13 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:38,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 208 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:38,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-24 20:12:38,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-24 20:12:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 69 states have (on average 1.7246376811594204) internal successors, (119), 116 states have internal predecessors, (119), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:38,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 125 transitions. [2024-10-24 20:12:38,361 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 125 transitions. Word has length 2 [2024-10-24 20:12:38,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:38,363 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 125 transitions. [2024-10-24 20:12:38,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-10-24 20:12:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 125 transitions. [2024-10-24 20:12:38,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-24 20:12:38,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:38,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-24 20:12:38,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:12:38,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:38,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash 203861, now seen corresponding path program 1 times [2024-10-24 20:12:38,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:38,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716005113] [2024-10-24 20:12:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:38,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:12:38,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:38,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716005113] [2024-10-24 20:12:38,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716005113] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:38,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:38,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 20:12:38,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881420784] [2024-10-24 20:12:38,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:38,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:12:38,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:38,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:12:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:38,410 INFO L87 Difference]: Start difference. First operand 122 states and 125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-10-24 20:12:38,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:38,459 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2024-10-24 20:12:38,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:12:38,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2024-10-24 20:12:38,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:38,462 INFO L225 Difference]: With dead ends: 122 [2024-10-24 20:12:38,464 INFO L226 Difference]: Without dead ends: 118 [2024-10-24 20:12:38,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:38,466 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 12 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:38,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 202 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:12:38,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-24 20:12:38,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-10-24 20:12:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 69 states have (on average 1.6666666666666667) internal successors, (115), 112 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 121 transitions. [2024-10-24 20:12:38,486 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 121 transitions. Word has length 3 [2024-10-24 20:12:38,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:38,486 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 121 transitions. [2024-10-24 20:12:38,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-10-24 20:12:38,486 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 121 transitions. [2024-10-24 20:12:38,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 20:12:38,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:38,487 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:38,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 20:12:38,487 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:38,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:38,489 INFO L85 PathProgramCache]: Analyzing trace with hash -707474599, now seen corresponding path program 1 times [2024-10-24 20:12:38,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:38,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767018437] [2024-10-24 20:12:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:38,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:12:38,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020457109] [2024-10-24 20:12:38,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:38,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:38,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:38,516 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) [2024-10-24 20:12:38,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:12:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:38,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:12:38,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:38,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:12:38,625 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:12:38,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:38,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767018437] [2024-10-24 20:12:38,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:12:38,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020457109] [2024-10-24 20:12:38,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020457109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:38,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:38,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 20:12:38,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832817495] [2024-10-24 20:12:38,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:38,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:12:38,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:38,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:12:38,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:38,629 INFO L87 Difference]: Start difference. First operand 118 states and 121 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-24 20:12:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:38,674 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2024-10-24 20:12:38,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:12:38,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2024-10-24 20:12:38,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:38,678 INFO L225 Difference]: With dead ends: 118 [2024-10-24 20:12:38,678 INFO L226 Difference]: Without dead ends: 116 [2024-10-24 20:12:38,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:38,680 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 8 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:38,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 202 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:12:38,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-24 20:12:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-10-24 20:12:38,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 69 states have (on average 1.6376811594202898) internal successors, (113), 110 states have internal predecessors, (113), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:38,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 119 transitions. [2024-10-24 20:12:38,692 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 119 transitions. Word has length 7 [2024-10-24 20:12:38,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:38,693 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 119 transitions. [2024-10-24 20:12:38,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-24 20:12:38,693 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 119 transitions. [2024-10-24 20:12:38,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-24 20:12:38,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:38,699 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:38,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 20:12:38,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:38,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:38,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:38,905 INFO L85 PathProgramCache]: Analyzing trace with hash 150165433, now seen corresponding path program 1 times [2024-10-24 20:12:38,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:38,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436763473] [2024-10-24 20:12:38,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:38,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:12:38,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146464001] [2024-10-24 20:12:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:38,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:38,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:38,948 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) [2024-10-24 20:12:38,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:12:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:38,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 20:12:39,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:39,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:39,057 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:12:39,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436763473] [2024-10-24 20:12:39,057 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:12:39,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146464001] [2024-10-24 20:12:39,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146464001] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:39,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:39,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:12:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467358435] [2024-10-24 20:12:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:39,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:12:39,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:12:39,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:39,059 INFO L87 Difference]: Start difference. First operand 116 states and 119 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:39,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:39,099 INFO L93 Difference]: Finished difference Result 116 states and 119 transitions. [2024-10-24 20:12:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:12:39,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2024-10-24 20:12:39,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:39,101 INFO L225 Difference]: With dead ends: 116 [2024-10-24 20:12:39,101 INFO L226 Difference]: Without dead ends: 114 [2024-10-24 20:12:39,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:39,103 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 86 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:39,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 111 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:12:39,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-24 20:12:39,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-10-24 20:12:39,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 69 states have (on average 1.608695652173913) internal successors, (111), 108 states have internal predecessors, (111), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 117 transitions. [2024-10-24 20:12:39,114 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 117 transitions. Word has length 24 [2024-10-24 20:12:39,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:39,116 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 117 transitions. [2024-10-24 20:12:39,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:39,116 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 117 transitions. [2024-10-24 20:12:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 20:12:39,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:39,117 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:39,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:12:39,317 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,SelfDestructingSolverStorable3 [2024-10-24 20:12:39,318 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:39,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:39,318 INFO L85 PathProgramCache]: Analyzing trace with hash 360161189, now seen corresponding path program 1 times [2024-10-24 20:12:39,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:39,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110192328] [2024-10-24 20:12:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:39,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:39,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:39,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:39,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:12:39,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:39,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110192328] [2024-10-24 20:12:39,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110192328] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:39,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162226730] [2024-10-24 20:12:39,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:39,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:39,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:39,592 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) [2024-10-24 20:12:39,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:12:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:39,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:12:39,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:12:39,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:12:39,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162226730] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:39,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:12:39,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-24 20:12:39,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141175731] [2024-10-24 20:12:39,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:39,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:12:39,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:39,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:12:39,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:12:39,799 INFO L87 Difference]: Start difference. First operand 114 states and 117 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:39,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:39,889 INFO L93 Difference]: Finished difference Result 114 states and 117 transitions. [2024-10-24 20:12:39,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:12:39,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2024-10-24 20:12:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:39,893 INFO L225 Difference]: With dead ends: 114 [2024-10-24 20:12:39,893 INFO L226 Difference]: Without dead ends: 112 [2024-10-24 20:12:39,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:12:39,895 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 85 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:39,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 382 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:39,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-24 20:12:39,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-10-24 20:12:39,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 69 states have (on average 1.5797101449275361) internal successors, (109), 106 states have internal predecessors, (109), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:39,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 115 transitions. [2024-10-24 20:12:39,909 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 115 transitions. Word has length 25 [2024-10-24 20:12:39,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:39,910 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 115 transitions. [2024-10-24 20:12:39,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:39,910 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 115 transitions. [2024-10-24 20:12:39,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-24 20:12:39,910 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:39,911 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:39,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-24 20:12:40,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:40,112 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:40,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:40,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1777446201, now seen corresponding path program 1 times [2024-10-24 20:12:40,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:40,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474175415] [2024-10-24 20:12:40,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:40,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:40,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:40,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:40,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474175415] [2024-10-24 20:12:40,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474175415] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:40,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:40,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:12:40,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354551088] [2024-10-24 20:12:40,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:40,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:12:40,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:40,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:12:40,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:12:40,241 INFO L87 Difference]: Start difference. First operand 112 states and 115 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:40,279 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2024-10-24 20:12:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:12:40,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2024-10-24 20:12:40,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:40,281 INFO L225 Difference]: With dead ends: 146 [2024-10-24 20:12:40,281 INFO L226 Difference]: Without dead ends: 116 [2024-10-24 20:12:40,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:12:40,283 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 9 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:40,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 307 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:12:40,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-10-24 20:12:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-10-24 20:12:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 73 states have (on average 1.547945205479452) internal successors, (113), 110 states have internal predecessors, (113), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 119 transitions. [2024-10-24 20:12:40,300 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 119 transitions. Word has length 27 [2024-10-24 20:12:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:40,300 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 119 transitions. [2024-10-24 20:12:40,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,301 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 119 transitions. [2024-10-24 20:12:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-24 20:12:40,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:40,301 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:40,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 20:12:40,302 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:40,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:40,302 INFO L85 PathProgramCache]: Analyzing trace with hash 752089058, now seen corresponding path program 1 times [2024-10-24 20:12:40,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:40,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39718388] [2024-10-24 20:12:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:40,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:40,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:40,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39718388] [2024-10-24 20:12:40,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39718388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:40,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:40,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:12:40,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758825483] [2024-10-24 20:12:40,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:40,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:12:40,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:40,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:12:40,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:40,381 INFO L87 Difference]: Start difference. First operand 116 states and 119 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:40,423 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2024-10-24 20:12:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:12:40,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-10-24 20:12:40,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:40,425 INFO L225 Difference]: With dead ends: 118 [2024-10-24 20:12:40,425 INFO L226 Difference]: Without dead ends: 117 [2024-10-24 20:12:40,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:40,426 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 35 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:40,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 158 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:12:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-10-24 20:12:40,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-10-24 20:12:40,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 111 states have internal predecessors, (114), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:40,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 120 transitions. [2024-10-24 20:12:40,440 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 120 transitions. Word has length 30 [2024-10-24 20:12:40,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:40,440 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 120 transitions. [2024-10-24 20:12:40,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,440 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 120 transitions. [2024-10-24 20:12:40,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 20:12:40,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:40,444 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:40,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 20:12:40,445 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:40,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:40,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1839924398, now seen corresponding path program 1 times [2024-10-24 20:12:40,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:40,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352731224] [2024-10-24 20:12:40,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:40,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:40,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:40,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:40,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352731224] [2024-10-24 20:12:40,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352731224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:40,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:40,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:12:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219000781] [2024-10-24 20:12:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:40,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:12:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:40,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:12:40,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:12:40,523 INFO L87 Difference]: Start difference. First operand 117 states and 120 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:40,608 INFO L93 Difference]: Finished difference Result 119 states and 122 transitions. [2024-10-24 20:12:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:12:40,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-10-24 20:12:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:40,610 INFO L225 Difference]: With dead ends: 119 [2024-10-24 20:12:40,612 INFO L226 Difference]: Without dead ends: 118 [2024-10-24 20:12:40,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:12:40,613 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 45 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:40,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 213 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:40,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-24 20:12:40,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-10-24 20:12:40,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 112 states have internal predecessors, (115), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 121 transitions. [2024-10-24 20:12:40,625 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 121 transitions. Word has length 31 [2024-10-24 20:12:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:40,625 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 121 transitions. [2024-10-24 20:12:40,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 121 transitions. [2024-10-24 20:12:40,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-24 20:12:40,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:40,626 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:40,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 20:12:40,626 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:40,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:40,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1203081572, now seen corresponding path program 1 times [2024-10-24 20:12:40,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:40,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435163680] [2024-10-24 20:12:40,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:40,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:12:40,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163565004] [2024-10-24 20:12:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:40,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:40,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:40,646 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) [2024-10-24 20:12:40,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:12:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:40,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-24 20:12:40,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:40,749 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:12:40,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:40,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435163680] [2024-10-24 20:12:40,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:12:40,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163565004] [2024-10-24 20:12:40,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163565004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:40,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:40,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:12:40,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141120007] [2024-10-24 20:12:40,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:40,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:12:40,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:12:40,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:40,752 INFO L87 Difference]: Start difference. First operand 118 states and 121 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:40,817 INFO L93 Difference]: Finished difference Result 154 states and 165 transitions. [2024-10-24 20:12:40,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:12:40,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-10-24 20:12:40,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:40,818 INFO L225 Difference]: With dead ends: 154 [2024-10-24 20:12:40,818 INFO L226 Difference]: Without dead ends: 153 [2024-10-24 20:12:40,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:40,819 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 33 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:40,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 187 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-10-24 20:12:40,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 119. [2024-10-24 20:12:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 76 states have (on average 1.5263157894736843) internal successors, (116), 113 states have internal predecessors, (116), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 122 transitions. [2024-10-24 20:12:40,827 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 122 transitions. Word has length 32 [2024-10-24 20:12:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:40,827 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 122 transitions. [2024-10-24 20:12:40,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:40,827 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 122 transitions. [2024-10-24 20:12:40,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-24 20:12:40,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:40,828 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:40,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 20:12:41,028 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 [2024-10-24 20:12:41,029 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:41,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:41,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1359176848, now seen corresponding path program 1 times [2024-10-24 20:12:41,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:41,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312971712] [2024-10-24 20:12:41,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:41,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:41,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:41,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:41,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:12:41,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:41,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312971712] [2024-10-24 20:12:41,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312971712] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:41,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609969597] [2024-10-24 20:12:41,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:41,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:41,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:41,157 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) [2024-10-24 20:12:41,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 20:12:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:41,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:12:41,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:12:41,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:12:41,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:12:41,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609969597] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:12:41,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:12:41,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-10-24 20:12:41,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402547618] [2024-10-24 20:12:41,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:12:41,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 20:12:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:41,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 20:12:41,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:12:41,724 INFO L87 Difference]: Start difference. First operand 119 states and 122 transitions. Second operand has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:41,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:41,961 INFO L93 Difference]: Finished difference Result 154 states and 164 transitions. [2024-10-24 20:12:41,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 20:12:41,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2024-10-24 20:12:41,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:41,963 INFO L225 Difference]: With dead ends: 154 [2024-10-24 20:12:41,963 INFO L226 Difference]: Without dead ends: 153 [2024-10-24 20:12:41,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:12:41,964 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 218 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:41,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 567 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:12:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-10-24 20:12:41,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 120. [2024-10-24 20:12:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 114 states have internal predecessors, (117), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:12:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 123 transitions. [2024-10-24 20:12:41,972 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 123 transitions. Word has length 33 [2024-10-24 20:12:41,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:41,974 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 123 transitions. [2024-10-24 20:12:41,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.923076923076923) internal successors, (77), 14 states have internal predecessors, (77), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:41,974 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 123 transitions. [2024-10-24 20:12:41,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-24 20:12:41,975 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:41,977 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:41,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-24 20:12:42,181 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 [2024-10-24 20:12:42,182 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:42,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash -498890190, now seen corresponding path program 1 times [2024-10-24 20:12:42,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:42,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256871928] [2024-10-24 20:12:42,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:42,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:12:42,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1458778625] [2024-10-24 20:12:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:42,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:42,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:42,201 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:12:42,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 20:12:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:42,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:12:42,249 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:12:42,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:12:42,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:42,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256871928] [2024-10-24 20:12:42,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:12:42,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458778625] [2024-10-24 20:12:42,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458778625] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:42,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:12:42,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-10-24 20:12:42,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356710849] [2024-10-24 20:12:42,545 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:12:42,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:12:42,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:42,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:12:42,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:12:42,546 INFO L87 Difference]: Start difference. First operand 120 states and 123 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 20:12:43,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:43,681 INFO L93 Difference]: Finished difference Result 199 states and 213 transitions. [2024-10-24 20:12:43,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 20:12:43,682 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2024-10-24 20:12:43,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:43,684 INFO L225 Difference]: With dead ends: 199 [2024-10-24 20:12:43,684 INFO L226 Difference]: Without dead ends: 184 [2024-10-24 20:12:43,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:12:43,685 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 219 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:43,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 303 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 20:12:43,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-24 20:12:43,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 168. [2024-10-24 20:12:43,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 124 states have (on average 1.532258064516129) internal successors, (190), 161 states have internal predecessors, (190), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:12:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 198 transitions. [2024-10-24 20:12:43,698 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 198 transitions. Word has length 35 [2024-10-24 20:12:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:43,699 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 198 transitions. [2024-10-24 20:12:43,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 20:12:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 198 transitions. [2024-10-24 20:12:43,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-24 20:12:43,713 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:43,713 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:43,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-24 20:12:43,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:43,914 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:43,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:43,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1602867444, now seen corresponding path program 1 times [2024-10-24 20:12:43,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:43,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565928000] [2024-10-24 20:12:43,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:43,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:12:43,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307729471] [2024-10-24 20:12:43,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:43,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:43,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:43,932 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:12:43,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 20:12:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:43,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:12:43,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:44,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:44,002 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:12:44,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:44,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565928000] [2024-10-24 20:12:44,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:12:44,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307729471] [2024-10-24 20:12:44,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307729471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:44,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:44,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:12:44,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563308227] [2024-10-24 20:12:44,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:44,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:12:44,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:44,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:12:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:44,004 INFO L87 Difference]: Start difference. First operand 168 states and 198 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:44,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:44,114 INFO L93 Difference]: Finished difference Result 287 states and 348 transitions. [2024-10-24 20:12:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:12:44,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2024-10-24 20:12:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:44,116 INFO L225 Difference]: With dead ends: 287 [2024-10-24 20:12:44,116 INFO L226 Difference]: Without dead ends: 258 [2024-10-24 20:12:44,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:12:44,117 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 54 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:44,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 147 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:44,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-10-24 20:12:44,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 241. [2024-10-24 20:12:44,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 195 states have (on average 1.4974358974358974) internal successors, (292), 232 states have internal predecessors, (292), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:44,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 304 transitions. [2024-10-24 20:12:44,131 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 304 transitions. Word has length 37 [2024-10-24 20:12:44,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:44,131 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 304 transitions. [2024-10-24 20:12:44,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:12:44,132 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 304 transitions. [2024-10-24 20:12:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 20:12:44,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:44,132 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:44,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-24 20:12:44,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:44,337 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:44,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:44,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1717976614, now seen corresponding path program 1 times [2024-10-24 20:12:44,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:44,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904606454] [2024-10-24 20:12:44,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:44,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:44,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:44,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904606454] [2024-10-24 20:12:44,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904606454] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:44,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:44,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:12:44,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280200764] [2024-10-24 20:12:44,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:44,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:12:44,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:44,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:12:44,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:12:44,426 INFO L87 Difference]: Start difference. First operand 241 states and 304 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:44,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:44,556 INFO L93 Difference]: Finished difference Result 241 states and 304 transitions. [2024-10-24 20:12:44,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:12:44,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-10-24 20:12:44,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:44,558 INFO L225 Difference]: With dead ends: 241 [2024-10-24 20:12:44,558 INFO L226 Difference]: Without dead ends: 240 [2024-10-24 20:12:44,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:12:44,559 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 119 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:44,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 186 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2024-10-24 20:12:44,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2024-10-24 20:12:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 195 states have (on average 1.476923076923077) internal successors, (288), 231 states have internal predecessors, (288), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:44,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 300 transitions. [2024-10-24 20:12:44,571 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 300 transitions. Word has length 55 [2024-10-24 20:12:44,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:44,572 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 300 transitions. [2024-10-24 20:12:44,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:44,572 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 300 transitions. [2024-10-24 20:12:44,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 20:12:44,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:44,573 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:44,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 20:12:44,573 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:44,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:44,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1717976934, now seen corresponding path program 1 times [2024-10-24 20:12:44,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:44,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923349294] [2024-10-24 20:12:44,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:44,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:44,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:44,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923349294] [2024-10-24 20:12:44,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923349294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:44,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:44,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:12:44,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196401354] [2024-10-24 20:12:44,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:44,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:12:44,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:44,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:12:44,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:12:44,651 INFO L87 Difference]: Start difference. First operand 240 states and 300 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:44,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:44,779 INFO L93 Difference]: Finished difference Result 257 states and 301 transitions. [2024-10-24 20:12:44,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:12:44,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 55 [2024-10-24 20:12:44,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:44,781 INFO L225 Difference]: With dead ends: 257 [2024-10-24 20:12:44,781 INFO L226 Difference]: Without dead ends: 256 [2024-10-24 20:12:44,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:12:44,782 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 41 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:44,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 177 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-24 20:12:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 240. [2024-10-24 20:12:44,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 195 states have (on average 1.4666666666666666) internal successors, (286), 231 states have internal predecessors, (286), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:44,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 298 transitions. [2024-10-24 20:12:44,797 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 298 transitions. Word has length 55 [2024-10-24 20:12:44,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:44,797 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 298 transitions. [2024-10-24 20:12:44,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:44,798 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 298 transitions. [2024-10-24 20:12:44,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 20:12:44,798 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:44,798 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:44,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 20:12:44,800 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:44,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:44,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1717667347, now seen corresponding path program 1 times [2024-10-24 20:12:44,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:44,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902025817] [2024-10-24 20:12:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:44,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:44,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:44,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:44,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902025817] [2024-10-24 20:12:44,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902025817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:44,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:44,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:12:44,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514128010] [2024-10-24 20:12:44,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:44,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:12:44,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:44,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:12:44,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:12:44,858 INFO L87 Difference]: Start difference. First operand 240 states and 298 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:44,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:44,996 INFO L93 Difference]: Finished difference Result 264 states and 326 transitions. [2024-10-24 20:12:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:12:44,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-10-24 20:12:44,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:44,998 INFO L225 Difference]: With dead ends: 264 [2024-10-24 20:12:44,998 INFO L226 Difference]: Without dead ends: 260 [2024-10-24 20:12:44,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:12:45,000 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 55 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:45,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 192 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:45,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-10-24 20:12:45,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 234. [2024-10-24 20:12:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 193 states have (on average 1.4196891191709844) internal successors, (274), 225 states have internal predecessors, (274), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 286 transitions. [2024-10-24 20:12:45,016 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 286 transitions. Word has length 56 [2024-10-24 20:12:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:45,016 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 286 transitions. [2024-10-24 20:12:45,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 286 transitions. [2024-10-24 20:12:45,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-24 20:12:45,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:45,039 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:45,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 20:12:45,040 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:45,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:45,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1717677277, now seen corresponding path program 1 times [2024-10-24 20:12:45,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:45,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151132360] [2024-10-24 20:12:45,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:45,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:45,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151132360] [2024-10-24 20:12:45,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151132360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:45,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:45,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:12:45,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151298051] [2024-10-24 20:12:45,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:45,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:12:45,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:45,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:12:45,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:12:45,130 INFO L87 Difference]: Start difference. First operand 234 states and 286 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:45,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:45,317 INFO L93 Difference]: Finished difference Result 243 states and 287 transitions. [2024-10-24 20:12:45,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:12:45,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-10-24 20:12:45,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:45,320 INFO L225 Difference]: With dead ends: 243 [2024-10-24 20:12:45,320 INFO L226 Difference]: Without dead ends: 242 [2024-10-24 20:12:45,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:12:45,322 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 189 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:45,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 153 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:12:45,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-10-24 20:12:45,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 234. [2024-10-24 20:12:45,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 193 states have (on average 1.4093264248704662) internal successors, (272), 225 states have internal predecessors, (272), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 284 transitions. [2024-10-24 20:12:45,335 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 284 transitions. Word has length 56 [2024-10-24 20:12:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:45,335 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 284 transitions. [2024-10-24 20:12:45,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 284 transitions. [2024-10-24 20:12:45,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-24 20:12:45,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:45,337 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:45,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 20:12:45,337 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:45,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:45,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1359352945, now seen corresponding path program 1 times [2024-10-24 20:12:45,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479483672] [2024-10-24 20:12:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:45,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:45,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:45,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479483672] [2024-10-24 20:12:45,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479483672] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:45,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186171762] [2024-10-24 20:12:45,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:45,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:45,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:45,452 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:12:45,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 20:12:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:12:45,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:45,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:12:45,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186171762] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:45,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:12:45,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-24 20:12:45,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564065267] [2024-10-24 20:12:45,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:45,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:12:45,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:45,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:12:45,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:12:45,582 INFO L87 Difference]: Start difference. First operand 234 states and 284 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:45,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:45,631 INFO L93 Difference]: Finished difference Result 234 states and 284 transitions. [2024-10-24 20:12:45,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:12:45,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2024-10-24 20:12:45,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:45,633 INFO L225 Difference]: With dead ends: 234 [2024-10-24 20:12:45,633 INFO L226 Difference]: Without dead ends: 233 [2024-10-24 20:12:45,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:12:45,634 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 61 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:45,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 221 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:12:45,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-10-24 20:12:45,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-10-24 20:12:45,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 193 states have (on average 1.3937823834196892) internal successors, (269), 224 states have internal predecessors, (269), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:12:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 281 transitions. [2024-10-24 20:12:45,645 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 281 transitions. Word has length 60 [2024-10-24 20:12:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:45,645 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 281 transitions. [2024-10-24 20:12:45,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 281 transitions. [2024-10-24 20:12:45,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-24 20:12:45,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:45,646 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:45,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 20:12:45,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-24 20:12:45,851 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:45,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:45,851 INFO L85 PathProgramCache]: Analyzing trace with hash -809731594, now seen corresponding path program 1 times [2024-10-24 20:12:45,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:45,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380658227] [2024-10-24 20:12:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:45,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:45,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380658227] [2024-10-24 20:12:45,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380658227] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:45,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317833932] [2024-10-24 20:12:45,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:45,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:45,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:45,942 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:12:45,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 20:12:45,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:45,999 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:12:46,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:46,080 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:46,080 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:12:46,175 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:46,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317833932] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:12:46,175 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:12:46,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 12 [2024-10-24 20:12:46,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047250234] [2024-10-24 20:12:46,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:12:46,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:12:46,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:46,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:12:46,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:12:46,177 INFO L87 Difference]: Start difference. First operand 233 states and 281 transitions. Second operand has 13 states, 12 states have (on average 10.25) internal successors, (123), 13 states have internal predecessors, (123), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-24 20:12:46,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:46,327 INFO L93 Difference]: Finished difference Result 601 states and 705 transitions. [2024-10-24 20:12:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:12:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.25) internal successors, (123), 13 states have internal predecessors, (123), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 61 [2024-10-24 20:12:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:46,330 INFO L225 Difference]: With dead ends: 601 [2024-10-24 20:12:46,330 INFO L226 Difference]: Without dead ends: 558 [2024-10-24 20:12:46,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:12:46,331 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 232 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:46,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 905 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-10-24 20:12:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 419. [2024-10-24 20:12:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 371 states have (on average 1.4231805929919137) internal successors, (528), 402 states have internal predecessors, (528), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 20:12:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 550 transitions. [2024-10-24 20:12:46,357 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 550 transitions. Word has length 61 [2024-10-24 20:12:46,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:46,357 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 550 transitions. [2024-10-24 20:12:46,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.25) internal successors, (123), 13 states have internal predecessors, (123), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-10-24 20:12:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 550 transitions. [2024-10-24 20:12:46,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-24 20:12:46,358 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:46,358 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:46,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-24 20:12:46,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-24 20:12:46,560 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:46,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:46,561 INFO L85 PathProgramCache]: Analyzing trace with hash -762978824, now seen corresponding path program 1 times [2024-10-24 20:12:46,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:46,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048585647] [2024-10-24 20:12:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,637 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:46,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:46,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048585647] [2024-10-24 20:12:46,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048585647] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:12:46,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:12:46,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:12:46,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648667913] [2024-10-24 20:12:46,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:12:46,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:12:46,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:12:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:12:46,639 INFO L87 Difference]: Start difference. First operand 419 states and 550 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:46,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:46,800 INFO L93 Difference]: Finished difference Result 480 states and 621 transitions. [2024-10-24 20:12:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:12:46,801 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 63 [2024-10-24 20:12:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:46,803 INFO L225 Difference]: With dead ends: 480 [2024-10-24 20:12:46,804 INFO L226 Difference]: Without dead ends: 479 [2024-10-24 20:12:46,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:12:46,804 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 70 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:46,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 287 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:12:46,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-10-24 20:12:46,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 432. [2024-10-24 20:12:46,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 384 states have (on average 1.4088541666666667) internal successors, (541), 415 states have internal predecessors, (541), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 20:12:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 563 transitions. [2024-10-24 20:12:46,827 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 563 transitions. Word has length 63 [2024-10-24 20:12:46,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:46,827 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 563 transitions. [2024-10-24 20:12:46,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:12:46,828 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 563 transitions. [2024-10-24 20:12:46,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-24 20:12:46,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:46,831 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:46,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 20:12:46,832 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:46,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1277203778, now seen corresponding path program 1 times [2024-10-24 20:12:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:46,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956628624] [2024-10-24 20:12:46,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:46,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:46,954 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:46,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:46,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956628624] [2024-10-24 20:12:46,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956628624] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:46,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600552233] [2024-10-24 20:12:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:46,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:46,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:46,957 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:12:46,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 20:12:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:47,006 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:12:47,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:47,180 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:47,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:12:47,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:47,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600552233] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:12:47,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:12:47,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-10-24 20:12:47,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206918878] [2024-10-24 20:12:47,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:12:47,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 20:12:47,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:47,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 20:12:47,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:12:47,293 INFO L87 Difference]: Start difference. First operand 432 states and 563 transitions. Second operand has 14 states, 13 states have (on average 10.76923076923077) internal successors, (140), 14 states have internal predecessors, (140), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-24 20:12:48,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:48,056 INFO L93 Difference]: Finished difference Result 582 states and 737 transitions. [2024-10-24 20:12:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:12:48,056 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.76923076923077) internal successors, (140), 14 states have internal predecessors, (140), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 63 [2024-10-24 20:12:48,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:48,058 INFO L225 Difference]: With dead ends: 582 [2024-10-24 20:12:48,058 INFO L226 Difference]: Without dead ends: 580 [2024-10-24 20:12:48,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=335, Unknown=0, NotChecked=0, Total=506 [2024-10-24 20:12:48,060 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 753 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:48,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 490 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 20:12:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-10-24 20:12:48,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 435. [2024-10-24 20:12:48,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 388 states have (on average 1.3943298969072164) internal successors, (541), 418 states have internal predecessors, (541), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 20:12:48,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 563 transitions. [2024-10-24 20:12:48,092 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 563 transitions. Word has length 63 [2024-10-24 20:12:48,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:48,093 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 563 transitions. [2024-10-24 20:12:48,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.76923076923077) internal successors, (140), 14 states have internal predecessors, (140), 5 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-10-24 20:12:48,093 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 563 transitions. [2024-10-24 20:12:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 20:12:48,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:48,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:48,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-24 20:12:48,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:48,299 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:48,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2117460312, now seen corresponding path program 1 times [2024-10-24 20:12:48,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:48,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910121452] [2024-10-24 20:12:48,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:48,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:48,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:48,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:48,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:48,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:48,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910121452] [2024-10-24 20:12:48,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910121452] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:48,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675432350] [2024-10-24 20:12:48,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:48,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:48,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:48,395 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:12:48,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 20:12:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:48,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:12:48,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:12:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:48,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:12:48,770 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:48,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675432350] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:12:48,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:12:48,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-10-24 20:12:48,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886864268] [2024-10-24 20:12:48,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:12:48,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 20:12:48,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:12:48,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 20:12:48,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:12:48,772 INFO L87 Difference]: Start difference. First operand 435 states and 563 transitions. Second operand has 14 states, 13 states have (on average 11.76923076923077) internal successors, (153), 14 states have internal predecessors, (153), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-24 20:12:49,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:12:49,234 INFO L93 Difference]: Finished difference Result 541 states and 696 transitions. [2024-10-24 20:12:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 20:12:49,234 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.76923076923077) internal successors, (153), 14 states have internal predecessors, (153), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) Word has length 64 [2024-10-24 20:12:49,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:12:49,237 INFO L225 Difference]: With dead ends: 541 [2024-10-24 20:12:49,238 INFO L226 Difference]: Without dead ends: 539 [2024-10-24 20:12:49,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=109, Invalid=271, Unknown=0, NotChecked=0, Total=380 [2024-10-24 20:12:49,239 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 345 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:12:49,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 267 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:12:49,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-10-24 20:12:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 447. [2024-10-24 20:12:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 400 states have (on average 1.3725) internal successors, (549), 430 states have internal predecessors, (549), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-24 20:12:49,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 571 transitions. [2024-10-24 20:12:49,267 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 571 transitions. Word has length 64 [2024-10-24 20:12:49,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:12:49,267 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 571 transitions. [2024-10-24 20:12:49,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.76923076923077) internal successors, (153), 14 states have internal predecessors, (153), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-24 20:12:49,268 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 571 transitions. [2024-10-24 20:12:49,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-24 20:12:49,268 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:12:49,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:12:49,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-24 20:12:49,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-24 20:12:49,469 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:12:49,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:12:49,469 INFO L85 PathProgramCache]: Analyzing trace with hash 938611534, now seen corresponding path program 1 times [2024-10-24 20:12:49,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:12:49,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883644490] [2024-10-24 20:12:49,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:49,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:12:49,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:49,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 20:12:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:49,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 20:12:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:49,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-24 20:12:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:12:49,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:12:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883644490] [2024-10-24 20:12:49,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883644490] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:12:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207826238] [2024-10-24 20:12:49,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:12:49,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:12:49,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:12:49,583 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:12:49,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 20:12:49,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:12:49,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:12:49,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:13:04,639 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~R~0#1_47| Int)) (let ((.cse0 (* |v_ULTIMATE.start_main_~R~0#1_47| |v_ULTIMATE.start_main_~R~0#1_47|))) (and (<= (+ |c_ULTIMATE.start_main_~r~0#1| |c_ULTIMATE.start_main_~A~0#1| 1) .cse0) (<= .cse0 9223372036854775807)))) is different from true [2024-10-24 20:13:04,676 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 6 not checked. [2024-10-24 20:13:04,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:13:04,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:13:04,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207826238] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:13:04,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:13:04,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-10-24 20:13:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958840359] [2024-10-24 20:13:04,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:13:04,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 20:13:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:13:04,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 20:13:04,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=106, Unknown=6, NotChecked=22, Total=182 [2024-10-24 20:13:04,797 INFO L87 Difference]: Start difference. First operand 447 states and 571 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-24 20:13:20,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 20:13:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:13:39,434 INFO L93 Difference]: Finished difference Result 593 states and 742 transitions. [2024-10-24 20:13:39,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 20:13:39,435 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 64 [2024-10-24 20:13:39,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:13:39,437 INFO L225 Difference]: With dead ends: 593 [2024-10-24 20:13:39,438 INFO L226 Difference]: Without dead ends: 588 [2024-10-24 20:13:39,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 43.0s TimeCoverageRelationStatistics Valid=142, Invalid=310, Unknown=14, NotChecked=40, Total=506 [2024-10-24 20:13:39,440 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 362 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 28 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 270 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:13:39,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 321 Invalid, 820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 519 Invalid, 3 Unknown, 270 Unchecked, 6.4s Time] [2024-10-24 20:13:39,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2024-10-24 20:13:39,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 496. [2024-10-24 20:13:39,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 451 states have (on average 1.3547671840354767) internal successors, (611), 477 states have internal predecessors, (611), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-24 20:13:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 637 transitions. [2024-10-24 20:13:39,484 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 637 transitions. Word has length 64 [2024-10-24 20:13:39,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:13:39,484 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 637 transitions. [2024-10-24 20:13:39,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-24 20:13:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 637 transitions. [2024-10-24 20:13:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-24 20:13:39,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:13:39,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:13:39,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-24 20:13:39,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-24 20:13:39,686 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-24 20:13:39,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:13:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1216760314, now seen corresponding path program 1 times [2024-10-24 20:13:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:13:39,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602195193] [2024-10-24 20:13:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:13:39,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:13:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:13:39,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [443004123] [2024-10-24 20:13:39,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:13:39,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:13:39,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:13:39,702 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:13:39,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 20:13:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:13:39,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 20:13:39,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:13:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:13:41,245 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:13:41,702 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:13:41,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:13:41,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602195193] [2024-10-24 20:13:41,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:13:41,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443004123] [2024-10-24 20:13:41,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443004123] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:13:41,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:13:41,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-10-24 20:13:41,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179841886] [2024-10-24 20:13:41,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:13:41,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 20:13:41,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:13:41,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 20:13:41,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:13:41,704 INFO L87 Difference]: Start difference. First operand 496 states and 637 transitions. Second operand has 14 states, 13 states have (on average 8.307692307692308) internal successors, (108), 14 states have internal predecessors, (108), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-24 20:13:44,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:13:49,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:13:54,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:13:57,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:14:02,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 20:14:06,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:14:10,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-24 20:14:14,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []