./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/hard2_unwindbound5.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/hard2_unwindbound5.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 5f094e7ea34d2025ab25ab51a4a0b06d8f845826c76dbd06e91f3d4a761fa19b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:23:50,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:23:50,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:23:50,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:23:50,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:23:50,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:23:50,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:23:50,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:23:50,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:23:50,603 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:23:50,604 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:23:50,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:23:50,605 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:23:50,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:23:50,606 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:23:50,606 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:23:50,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:23:50,607 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:23:50,607 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:23:50,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:23:50,608 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:23:50,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:23:50,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:23:50,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:23:50,617 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:23:50,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:23:50,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:23:50,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:23:50,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:23:50,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:23:50,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:23:50,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:23:50,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:23:50,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:23:50,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:23:50,620 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:23:50,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:23:50,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:23:50,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:23:50,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:23:50,621 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:23:50,622 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:23:50,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:23:50,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:23:50,622 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5f094e7ea34d2025ab25ab51a4a0b06d8f845826c76dbd06e91f3d4a761fa19b [2024-10-24 20:23:50,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:23:50,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:23:50,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:23:50,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:23:50,892 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:23:50,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c [2024-10-24 20:23:52,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:23:52,516 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:23:52,517 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard2_unwindbound5.c [2024-10-24 20:23:52,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2b8b993e/1747b05e88de4ba2bb179ea76ddc9db8/FLAGe027acf91 [2024-10-24 20:23:52,540 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2b8b993e/1747b05e88de4ba2bb179ea76ddc9db8 [2024-10-24 20:23:52,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:23:52,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:23:52,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:23:52,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:23:52,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:23:52,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e035b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52, skipping insertion in model container [2024-10-24 20:23:52,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,576 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:23:52,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:23:52,768 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:23:52,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:23:52,840 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:23:52,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52 WrapperNode [2024-10-24 20:23:52,840 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:23:52,841 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:23:52,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:23:52,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:23:52,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,879 INFO L138 Inliner]: procedures = 14, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 103 [2024-10-24 20:23:52,880 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:23:52,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:23:52,881 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:23:52,881 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:23:52,889 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,891 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,901 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-10-24 20:23:52,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:23:52,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:23:52,912 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:23:52,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:23:52,912 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (1/1) ... [2024-10-24 20:23:52,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:23:52,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:52,946 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 20:23:52,949 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 20:23:52,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:23:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:23:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 20:23:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:23:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:23:52,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:23:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:23:53,070 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:23:53,073 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:23:53,372 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-10-24 20:23:53,372 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:23:53,403 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:23:53,404 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-24 20:23:53,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:53 BoogieIcfgContainer [2024-10-24 20:23:53,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:23:53,412 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:23:53,413 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:23:53,416 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:23:53,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:23:52" (1/3) ... [2024-10-24 20:23:53,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3a5dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:23:53, skipping insertion in model container [2024-10-24 20:23:53,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:23:52" (2/3) ... [2024-10-24 20:23:53,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3a5dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:23:53, skipping insertion in model container [2024-10-24 20:23:53,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:23:53" (3/3) ... [2024-10-24 20:23:53,422 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_unwindbound5.c [2024-10-24 20:23:53,439 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:23:53,440 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-24 20:23:53,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:23:53,520 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;@206831f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:23:53,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-24 20:23:53,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-24 20:23:53,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-24 20:23:53,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:53,532 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-24 20:23:53,533 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:53,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:53,537 INFO L85 PathProgramCache]: Analyzing trace with hash 163595, now seen corresponding path program 1 times [2024-10-24 20:23:53,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:53,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628739879] [2024-10-24 20:23:53,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:53,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:53,745 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 20:23:53,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:53,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628739879] [2024-10-24 20:23:53,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628739879] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:53,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:53,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:53,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770487632] [2024-10-24 20:23:53,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:53,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:23:53,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:53,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:23:53,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:23:53,779 INFO L87 Difference]: Start difference. First operand has 77 states, 40 states have (on average 1.9) internal successors, (76), 68 states have internal predecessors, (76), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 20:23:53,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:53,872 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2024-10-24 20:23:53,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:23:53,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 20:23:53,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:53,883 INFO L225 Difference]: With dead ends: 157 [2024-10-24 20:23:53,883 INFO L226 Difference]: Without dead ends: 77 [2024-10-24 20:23:53,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 20:23:53,892 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 4 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:53,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 239 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:53,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-10-24 20:23:53,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-10-24 20:23:53,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.744186046511628) internal successors, (75), 70 states have internal predecessors, (75), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-24 20:23:53,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2024-10-24 20:23:53,941 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 3 [2024-10-24 20:23:53,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:53,941 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2024-10-24 20:23:53,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 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 20:23:53,942 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2024-10-24 20:23:53,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-24 20:23:53,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:53,944 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:53,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:23:53,945 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:53,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:53,947 INFO L85 PathProgramCache]: Analyzing trace with hash -576103490, now seen corresponding path program 1 times [2024-10-24 20:23:53,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:53,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295551811] [2024-10-24 20:23:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:53,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:53,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1788522355] [2024-10-24 20:23:53,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:53,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:53,999 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 20:23:54,001 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 20:23:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:54,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:54,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:54,185 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 20:23:54,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:54,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:54,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295551811] [2024-10-24 20:23:54,188 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:54,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788522355] [2024-10-24 20:23:54,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788522355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:54,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:54,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:54,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129502688] [2024-10-24 20:23:54,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:54,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:23:54,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:54,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:23:54,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:23:54,196 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 20:23:54,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:54,345 INFO L93 Difference]: Finished difference Result 166 states and 190 transitions. [2024-10-24 20:23:54,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:23:54,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2024-10-24 20:23:54,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:54,349 INFO L225 Difference]: With dead ends: 166 [2024-10-24 20:23:54,349 INFO L226 Difference]: Without dead ends: 112 [2024-10-24 20:23:54,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 20:23:54,352 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 29 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:54,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 122 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:54,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-24 20:23:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 100. [2024-10-24 20:23:54,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.6885245901639345) internal successors, (103), 88 states have internal predecessors, (103), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:54,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 123 transitions. [2024-10-24 20:23:54,375 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 123 transitions. Word has length 16 [2024-10-24 20:23:54,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:54,379 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 123 transitions. [2024-10-24 20:23:54,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 20:23:54,379 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 123 transitions. [2024-10-24 20:23:54,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-24 20:23:54,380 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:54,380 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:54,397 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 20:23:54,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:54,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:54,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:54,582 INFO L85 PathProgramCache]: Analyzing trace with hash 117225432, now seen corresponding path program 1 times [2024-10-24 20:23:54,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:54,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202573467] [2024-10-24 20:23:54,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:54,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:54,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:23:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:54,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:23:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:54,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:54,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:54,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202573467] [2024-10-24 20:23:54,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202573467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:54,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:54,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:54,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053681740] [2024-10-24 20:23:54,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:54,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:23:54,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:54,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:23:54,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:23:54,720 INFO L87 Difference]: Start difference. First operand 100 states and 123 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:54,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:54,784 INFO L93 Difference]: Finished difference Result 112 states and 130 transitions. [2024-10-24 20:23:54,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:23:54,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-10-24 20:23:54,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:54,787 INFO L225 Difference]: With dead ends: 112 [2024-10-24 20:23:54,787 INFO L226 Difference]: Without dead ends: 110 [2024-10-24 20:23:54,787 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 20:23:54,788 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 23 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:54,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 126 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-24 20:23:54,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2024-10-24 20:23:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 61 states have (on average 1.6557377049180328) internal successors, (101), 88 states have internal predecessors, (101), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:54,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 121 transitions. [2024-10-24 20:23:54,819 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 121 transitions. Word has length 24 [2024-10-24 20:23:54,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:54,820 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 121 transitions. [2024-10-24 20:23:54,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:54,820 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 121 transitions. [2024-10-24 20:23:54,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-24 20:23:54,825 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:54,825 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:54,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:23:54,826 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:54,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:54,826 INFO L85 PathProgramCache]: Analyzing trace with hash -660980348, now seen corresponding path program 1 times [2024-10-24 20:23:54,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:54,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026460709] [2024-10-24 20:23:54,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:54,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:23:55,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:23:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,047 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:55,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:55,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026460709] [2024-10-24 20:23:55,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026460709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:55,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:55,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:23:55,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612780854] [2024-10-24 20:23:55,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:55,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:23:55,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:55,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:23:55,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:23:55,055 INFO L87 Difference]: Start difference. First operand 100 states and 121 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:55,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:55,159 INFO L93 Difference]: Finished difference Result 123 states and 136 transitions. [2024-10-24 20:23:55,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:23:55,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-10-24 20:23:55,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:55,162 INFO L225 Difference]: With dead ends: 123 [2024-10-24 20:23:55,162 INFO L226 Difference]: Without dead ends: 122 [2024-10-24 20:23:55,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:55,163 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 46 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:55,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 346 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:55,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-24 20:23:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 104. [2024-10-24 20:23:55,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 64 states have (on average 1.609375) internal successors, (103), 91 states have internal predecessors, (103), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:55,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 123 transitions. [2024-10-24 20:23:55,178 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 123 transitions. Word has length 25 [2024-10-24 20:23:55,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:55,179 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 123 transitions. [2024-10-24 20:23:55,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 123 transitions. [2024-10-24 20:23:55,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-24 20:23:55,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:55,180 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:55,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 20:23:55,180 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:55,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:55,181 INFO L85 PathProgramCache]: Analyzing trace with hash 984445769, now seen corresponding path program 1 times [2024-10-24 20:23:55,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:55,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150005738] [2024-10-24 20:23:55,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:55,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:23:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:23:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:55,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:55,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150005738] [2024-10-24 20:23:55,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150005738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:55,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:55,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:23:55,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593226734] [2024-10-24 20:23:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:55,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:23:55,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:55,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:23:55,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:23:55,337 INFO L87 Difference]: Start difference. First operand 104 states and 123 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:55,410 INFO L93 Difference]: Finished difference Result 122 states and 138 transitions. [2024-10-24 20:23:55,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:23:55,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 26 [2024-10-24 20:23:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:55,411 INFO L225 Difference]: With dead ends: 122 [2024-10-24 20:23:55,411 INFO L226 Difference]: Without dead ends: 113 [2024-10-24 20:23:55,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:23:55,413 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 23 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:55,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 299 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-24 20:23:55,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2024-10-24 20:23:55,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 94 states have internal predecessors, (104), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-24 20:23:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 124 transitions. [2024-10-24 20:23:55,432 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 124 transitions. Word has length 26 [2024-10-24 20:23:55,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:55,432 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 124 transitions. [2024-10-24 20:23:55,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 124 transitions. [2024-10-24 20:23:55,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-24 20:23:55,433 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:55,433 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:55,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 20:23:55,434 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:55,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:55,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1159581515, now seen corresponding path program 1 times [2024-10-24 20:23:55,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:55,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772173204] [2024-10-24 20:23:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:55,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:55,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1576948600] [2024-10-24 20:23:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:55,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:55,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:55,461 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 20:23:55,462 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 20:23:55,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:23:55,514 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:55,557 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:55,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:55,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:55,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772173204] [2024-10-24 20:23:55,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:55,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576948600] [2024-10-24 20:23:55,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576948600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:55,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:55,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:55,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656941470] [2024-10-24 20:23:55,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:55,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:23:55,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:55,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:23:55,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:23:55,561 INFO L87 Difference]: Start difference. First operand 108 states and 124 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:55,646 INFO L93 Difference]: Finished difference Result 148 states and 174 transitions. [2024-10-24 20:23:55,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:23:55,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-10-24 20:23:55,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:55,648 INFO L225 Difference]: With dead ends: 148 [2024-10-24 20:23:55,648 INFO L226 Difference]: Without dead ends: 144 [2024-10-24 20:23:55,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 20:23:55,649 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 45 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:55,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:55,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-10-24 20:23:55,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 128. [2024-10-24 20:23:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 85 states have (on average 1.5647058823529412) internal successors, (133), 112 states have internal predecessors, (133), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:23:55,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 157 transitions. [2024-10-24 20:23:55,673 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 157 transitions. Word has length 28 [2024-10-24 20:23:55,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:55,673 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 157 transitions. [2024-10-24 20:23:55,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:55,674 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 157 transitions. [2024-10-24 20:23:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-24 20:23:55,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:55,674 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:55,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:55,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-24 20:23:55,876 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:55,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:55,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1317260150, now seen corresponding path program 1 times [2024-10-24 20:23:55,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:55,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174046947] [2024-10-24 20:23:55,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:55,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:23:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:23:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:55,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:56,005 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:56,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:56,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174046947] [2024-10-24 20:23:56,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174046947] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:56,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707226055] [2024-10-24 20:23:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:56,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:56,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:56,011 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 20:23:56,012 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 20:23:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:56,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:23:56,060 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:56,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:56,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707226055] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:56,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:56,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-24 20:23:56,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902780651] [2024-10-24 20:23:56,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:56,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:23:56,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:56,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:23:56,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:23:56,183 INFO L87 Difference]: Start difference. First operand 128 states and 157 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:56,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:56,239 INFO L93 Difference]: Finished difference Result 137 states and 165 transitions. [2024-10-24 20:23:56,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:23:56,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-10-24 20:23:56,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:56,241 INFO L225 Difference]: With dead ends: 137 [2024-10-24 20:23:56,241 INFO L226 Difference]: Without dead ends: 136 [2024-10-24 20:23:56,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:23:56,242 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 18 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:56,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 195 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:56,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-10-24 20:23:56,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 131. [2024-10-24 20:23:56,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 114 states have internal predecessors, (135), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:23:56,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 159 transitions. [2024-10-24 20:23:56,252 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 159 transitions. Word has length 29 [2024-10-24 20:23:56,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:56,252 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 159 transitions. [2024-10-24 20:23:56,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:56,253 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 159 transitions. [2024-10-24 20:23:56,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-24 20:23:56,253 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:56,253 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:56,270 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 20:23:56,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:56,455 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:56,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:56,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1961309005, now seen corresponding path program 1 times [2024-10-24 20:23:56,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:56,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61933188] [2024-10-24 20:23:56,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:56,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:56,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:56,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2069255909] [2024-10-24 20:23:56,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:56,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:56,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:56,473 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 20:23:56,479 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 20:23:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:56,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:56,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:56,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:56,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:56,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61933188] [2024-10-24 20:23:56,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:56,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069255909] [2024-10-24 20:23:56,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069255909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:56,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:56,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:23:56,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166320692] [2024-10-24 20:23:56,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:56,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:23:56,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:56,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:23:56,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:23:56,644 INFO L87 Difference]: Start difference. First operand 131 states and 159 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:56,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:56,701 INFO L93 Difference]: Finished difference Result 145 states and 166 transitions. [2024-10-24 20:23:56,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:23:56,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2024-10-24 20:23:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:56,703 INFO L225 Difference]: With dead ends: 145 [2024-10-24 20:23:56,703 INFO L226 Difference]: Without dead ends: 143 [2024-10-24 20:23:56,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 20:23:56,705 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 38 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:56,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 93 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-24 20:23:56,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 132. [2024-10-24 20:23:56,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 89 states have (on average 1.5056179775280898) internal successors, (134), 115 states have internal predecessors, (134), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:23:56,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 158 transitions. [2024-10-24 20:23:56,720 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 158 transitions. Word has length 30 [2024-10-24 20:23:56,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:56,720 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 158 transitions. [2024-10-24 20:23:56,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:56,720 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 158 transitions. [2024-10-24 20:23:56,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-24 20:23:56,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:56,721 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:56,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:56,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:56,926 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:56,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:56,926 INFO L85 PathProgramCache]: Analyzing trace with hash 2114608351, now seen corresponding path program 1 times [2024-10-24 20:23:56,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:56,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106361960] [2024-10-24 20:23:56,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:56,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:56,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:23:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:56,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:23:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,007 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:57,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:57,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106361960] [2024-10-24 20:23:57,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106361960] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:57,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794930960] [2024-10-24 20:23:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:57,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:57,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:57,012 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 20:23:57,014 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 20:23:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:23:57,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:57,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:57,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794930960] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:57,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:57,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-24 20:23:57,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891576371] [2024-10-24 20:23:57,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:57,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:23:57,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:23:57,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:23:57,125 INFO L87 Difference]: Start difference. First operand 132 states and 158 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:57,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:57,180 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2024-10-24 20:23:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:23:57,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2024-10-24 20:23:57,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:57,183 INFO L225 Difference]: With dead ends: 137 [2024-10-24 20:23:57,183 INFO L226 Difference]: Without dead ends: 136 [2024-10-24 20:23:57,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:23:57,185 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 15 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:57,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 266 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:23:57,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-10-24 20:23:57,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 131. [2024-10-24 20:23:57,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 89 states have (on average 1.4943820224719102) internal successors, (133), 114 states have internal predecessors, (133), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:23:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 157 transitions. [2024-10-24 20:23:57,194 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 157 transitions. Word has length 30 [2024-10-24 20:23:57,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:57,194 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 157 transitions. [2024-10-24 20:23:57,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:57,195 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 157 transitions. [2024-10-24 20:23:57,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 20:23:57,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:57,196 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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 20:23:57,213 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 20:23:57,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:57,397 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:57,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:57,397 INFO L85 PathProgramCache]: Analyzing trace with hash 671037101, now seen corresponding path program 1 times [2024-10-24 20:23:57,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:57,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96176966] [2024-10-24 20:23:57,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:57,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:23:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:23:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:57,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96176966] [2024-10-24 20:23:57,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96176966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:57,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:57,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:23:57,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758281792] [2024-10-24 20:23:57,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:57,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:23:57,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:57,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:23:57,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:23:57,469 INFO L87 Difference]: Start difference. First operand 131 states and 157 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:57,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:57,884 INFO L93 Difference]: Finished difference Result 151 states and 183 transitions. [2024-10-24 20:23:57,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:23:57,885 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-10-24 20:23:57,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:57,886 INFO L225 Difference]: With dead ends: 151 [2024-10-24 20:23:57,886 INFO L226 Difference]: Without dead ends: 150 [2024-10-24 20:23:57,886 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 20:23:57,887 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 90 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:57,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 154 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:23:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-24 20:23:57,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 139. [2024-10-24 20:23:57,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 97 states have (on average 1.4948453608247423) internal successors, (145), 122 states have internal predecessors, (145), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-24 20:23:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 169 transitions. [2024-10-24 20:23:57,900 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 169 transitions. Word has length 31 [2024-10-24 20:23:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:57,901 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 169 transitions. [2024-10-24 20:23:57,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-24 20:23:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 169 transitions. [2024-10-24 20:23:57,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-24 20:23:57,902 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:57,902 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:57,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 20:23:57,902 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:57,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:57,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2012098831, now seen corresponding path program 1 times [2024-10-24 20:23:57,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:57,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500861520] [2024-10-24 20:23:57,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:57,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:23:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:23:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:23:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:57,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:57,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500861520] [2024-10-24 20:23:57,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500861520] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:57,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1512390321] [2024-10-24 20:23:57,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:57,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:57,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:57,996 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 20:23:57,999 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 20:23:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:58,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:58,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:58,106 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:58,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:58,189 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:23:58,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1512390321] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:23:58,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:23:58,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6] total 13 [2024-10-24 20:23:58,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233650149] [2024-10-24 20:23:58,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:58,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:23:58,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:58,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:23:58,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:23:58,195 INFO L87 Difference]: Start difference. First operand 139 states and 169 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 20:23:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:58,353 INFO L93 Difference]: Finished difference Result 280 states and 341 transitions. [2024-10-24 20:23:58,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:23:58,353 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 33 [2024-10-24 20:23:58,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:58,355 INFO L225 Difference]: With dead ends: 280 [2024-10-24 20:23:58,355 INFO L226 Difference]: Without dead ends: 201 [2024-10-24 20:23:58,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 65 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 20:23:58,357 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 63 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:58,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 460 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-10-24 20:23:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 179. [2024-10-24 20:23:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 129 states have (on average 1.4806201550387597) internal successors, (191), 154 states have internal predecessors, (191), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 20:23:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 227 transitions. [2024-10-24 20:23:58,370 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 227 transitions. Word has length 33 [2024-10-24 20:23:58,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:58,370 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 227 transitions. [2024-10-24 20:23:58,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-24 20:23:58,371 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 227 transitions. [2024-10-24 20:23:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-24 20:23:58,372 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:58,372 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:58,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:58,576 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 20:23:58,577 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:58,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:58,578 INFO L85 PathProgramCache]: Analyzing trace with hash -177943393, now seen corresponding path program 1 times [2024-10-24 20:23:58,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:58,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872288908] [2024-10-24 20:23:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:58,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:58,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1796932895] [2024-10-24 20:23:58,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:58,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:58,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:58,590 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 20:23:58,592 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 20:23:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:58,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:58,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:23:58,735 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:23:58,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:58,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872288908] [2024-10-24 20:23:58,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:58,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796932895] [2024-10-24 20:23:58,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796932895] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:23:58,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:23:58,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:23:58,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774323087] [2024-10-24 20:23:58,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:23:58,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:23:58,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:58,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:23:58,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:23:58,740 INFO L87 Difference]: Start difference. First operand 179 states and 227 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:23:58,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:58,818 INFO L93 Difference]: Finished difference Result 215 states and 266 transitions. [2024-10-24 20:23:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:23:58,819 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-10-24 20:23:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:58,820 INFO L225 Difference]: With dead ends: 215 [2024-10-24 20:23:58,821 INFO L226 Difference]: Without dead ends: 206 [2024-10-24 20:23:58,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 20:23:58,822 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 79 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:58,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 122 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:58,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-10-24 20:23:58,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2024-10-24 20:23:58,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 140 states have (on average 1.4) internal successors, (196), 161 states have internal predecessors, (196), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 20:23:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 236 transitions. [2024-10-24 20:23:58,839 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 236 transitions. Word has length 42 [2024-10-24 20:23:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:58,840 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 236 transitions. [2024-10-24 20:23:58,840 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:23:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 236 transitions. [2024-10-24 20:23:58,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-24 20:23:58,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:58,842 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:23:58,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:59,042 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 20:23:59,043 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:59,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:59,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1221277835, now seen corresponding path program 1 times [2024-10-24 20:23:59,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:59,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809745853] [2024-10-24 20:23:59,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:59,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:23:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154765619] [2024-10-24 20:23:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:59,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:23:59,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:23:59,056 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 20:23:59,057 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 20:23:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:23:59,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:23:59,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:23:59,220 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:23:59,220 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:23:59,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:23:59,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809745853] [2024-10-24 20:23:59,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:23:59,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154765619] [2024-10-24 20:23:59,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154765619] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:23:59,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:23:59,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-10-24 20:23:59,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450588066] [2024-10-24 20:23:59,574 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:23:59,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:23:59,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:23:59,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:23:59,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:23:59,577 INFO L87 Difference]: Start difference. First operand 188 states and 236 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:23:59,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:23:59,682 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2024-10-24 20:23:59,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:23:59,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-10-24 20:23:59,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:23:59,684 INFO L225 Difference]: With dead ends: 285 [2024-10-24 20:23:59,685 INFO L226 Difference]: Without dead ends: 281 [2024-10-24 20:23:59,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:23:59,685 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 88 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:23:59,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 140 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:23:59,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-10-24 20:23:59,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 249. [2024-10-24 20:23:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 195 states have (on average 1.435897435897436) internal successors, (280), 216 states have internal predecessors, (280), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 20:23:59,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 332 transitions. [2024-10-24 20:23:59,705 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 332 transitions. Word has length 43 [2024-10-24 20:23:59,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:23:59,706 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 332 transitions. [2024-10-24 20:23:59,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:23:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 332 transitions. [2024-10-24 20:23:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-24 20:23:59,709 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:23:59,709 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:23:59,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-24 20:23:59,912 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,SelfDestructingSolverStorable12 [2024-10-24 20:23:59,913 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:23:59,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:23:59,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1982985848, now seen corresponding path program 1 times [2024-10-24 20:23:59,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:23:59,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12802494] [2024-10-24 20:23:59,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:23:59,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:23:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:00,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-24 20:24:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,036 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:24:00,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:00,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12802494] [2024-10-24 20:24:00,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12802494] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:00,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:00,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:24:00,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346108149] [2024-10-24 20:24:00,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:00,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:00,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:00,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:00,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:00,039 INFO L87 Difference]: Start difference. First operand 249 states and 332 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:00,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:00,113 INFO L93 Difference]: Finished difference Result 254 states and 336 transitions. [2024-10-24 20:24:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:00,114 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-10-24 20:24:00,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:00,115 INFO L225 Difference]: With dead ends: 254 [2024-10-24 20:24:00,115 INFO L226 Difference]: Without dead ends: 232 [2024-10-24 20:24:00,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:00,116 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 25 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:00,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 120 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:00,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-10-24 20:24:00,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2024-10-24 20:24:00,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 181 states have (on average 1.4640883977900552) internal successors, (265), 202 states have internal predecessors, (265), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-24 20:24:00,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 313 transitions. [2024-10-24 20:24:00,131 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 313 transitions. Word has length 48 [2024-10-24 20:24:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:00,131 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 313 transitions. [2024-10-24 20:24:00,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-24 20:24:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 313 transitions. [2024-10-24 20:24:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-24 20:24:00,132 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:00,132 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:00,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 20:24:00,132 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:00,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1953347513, now seen corresponding path program 1 times [2024-10-24 20:24:00,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:00,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568373345] [2024-10-24 20:24:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:00,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:00,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568373345] [2024-10-24 20:24:00,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568373345] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:00,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392168811] [2024-10-24 20:24:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:00,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:00,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:00,188 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 20:24:00,189 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 20:24:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:24:00,239 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:00,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:00,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392168811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:00,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:00,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-24 20:24:00,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456651730] [2024-10-24 20:24:00,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:00,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:00,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:00,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:00,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:00,281 INFO L87 Difference]: Start difference. First operand 232 states and 313 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:24:00,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:00,405 INFO L93 Difference]: Finished difference Result 335 states and 462 transitions. [2024-10-24 20:24:00,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:00,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2024-10-24 20:24:00,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:00,408 INFO L225 Difference]: With dead ends: 335 [2024-10-24 20:24:00,408 INFO L226 Difference]: Without dead ends: 333 [2024-10-24 20:24:00,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 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 20:24:00,409 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 82 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:00,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 137 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:00,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-10-24 20:24:00,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 305. [2024-10-24 20:24:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 247 states have (on average 1.48582995951417) internal successors, (367), 267 states have internal predecessors, (367), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 20:24:00,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 431 transitions. [2024-10-24 20:24:00,428 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 431 transitions. Word has length 50 [2024-10-24 20:24:00,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:00,428 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 431 transitions. [2024-10-24 20:24:00,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:24:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 431 transitions. [2024-10-24 20:24:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-24 20:24:00,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:00,429 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:00,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 20:24:00,630 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,SelfDestructingSolverStorable14 [2024-10-24 20:24:00,630 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:00,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:00,631 INFO L85 PathProgramCache]: Analyzing trace with hash 424229315, now seen corresponding path program 1 times [2024-10-24 20:24:00,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:00,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767823395] [2024-10-24 20:24:00,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:00,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:00,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,734 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:00,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767823395] [2024-10-24 20:24:00,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767823395] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:00,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873491466] [2024-10-24 20:24:00,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:00,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:00,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:00,737 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 20:24:00,739 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 20:24:00,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:00,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:24:00,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:00,902 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:24:00,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:00,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873491466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:00,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:00,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-10-24 20:24:00,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217007896] [2024-10-24 20:24:00,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:00,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:24:00,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:00,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:24:00,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:24:00,903 INFO L87 Difference]: Start difference. First operand 305 states and 431 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:24:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:00,967 INFO L93 Difference]: Finished difference Result 305 states and 431 transitions. [2024-10-24 20:24:00,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:00,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-10-24 20:24:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:00,969 INFO L225 Difference]: With dead ends: 305 [2024-10-24 20:24:00,969 INFO L226 Difference]: Without dead ends: 304 [2024-10-24 20:24:00,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:24:00,970 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 109 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:00,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 183 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:24:00,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-24 20:24:00,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-10-24 20:24:00,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 247 states have (on average 1.437246963562753) internal successors, (355), 266 states have internal predecessors, (355), 32 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-24 20:24:00,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 419 transitions. [2024-10-24 20:24:00,992 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 419 transitions. Word has length 51 [2024-10-24 20:24:00,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:00,992 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 419 transitions. [2024-10-24 20:24:00,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-24 20:24:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 419 transitions. [2024-10-24 20:24:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-24 20:24:00,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:00,994 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 20:24:01,011 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 20:24:01,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-24 20:24:01,195 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:01,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash 424230821, now seen corresponding path program 1 times [2024-10-24 20:24:01,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:01,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960689233] [2024-10-24 20:24:01,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:01,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:01,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:01,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960689233] [2024-10-24 20:24:01,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960689233] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:01,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324680466] [2024-10-24 20:24:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:01,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:01,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:01,256 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 20:24:01,257 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 20:24:01,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:24:01,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:01,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:01,411 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:01,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324680466] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:01,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:01,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-24 20:24:01,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476518661] [2024-10-24 20:24:01,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:01,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:24:01,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:01,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:24:01,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:01,414 INFO L87 Difference]: Start difference. First operand 304 states and 419 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:24:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:01,578 INFO L93 Difference]: Finished difference Result 471 states and 641 transitions. [2024-10-24 20:24:01,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:24:01,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 51 [2024-10-24 20:24:01,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:01,581 INFO L225 Difference]: With dead ends: 471 [2024-10-24 20:24:01,581 INFO L226 Difference]: Without dead ends: 469 [2024-10-24 20:24:01,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:01,582 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 193 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:01,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 251 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:01,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-10-24 20:24:01,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 410. [2024-10-24 20:24:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 340 states have (on average 1.45) internal successors, (493), 359 states have internal predecessors, (493), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:01,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 583 transitions. [2024-10-24 20:24:01,608 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 583 transitions. Word has length 51 [2024-10-24 20:24:01,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:01,608 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 583 transitions. [2024-10-24 20:24:01,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-24 20:24:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 583 transitions. [2024-10-24 20:24:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-24 20:24:01,609 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:01,609 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:01,626 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 20:24:01,810 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,SelfDestructingSolverStorable16 [2024-10-24 20:24:01,810 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:01,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:01,811 INFO L85 PathProgramCache]: Analyzing trace with hash 266206954, now seen corresponding path program 1 times [2024-10-24 20:24:01,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:01,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190280996] [2024-10-24 20:24:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:01,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:01,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,920 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:01,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:01,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190280996] [2024-10-24 20:24:01,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190280996] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:01,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520903892] [2024-10-24 20:24:01,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:01,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:01,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:01,931 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 20:24:01,939 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 20:24:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:01,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:24:01,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 43 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-24 20:24:02,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-24 20:24:02,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520903892] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:02,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:02,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-10-24 20:24:02,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396144919] [2024-10-24 20:24:02,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:02,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 20:24:02,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:02,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 20:24:02,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:24:02,195 INFO L87 Difference]: Start difference. First operand 410 states and 583 transitions. Second operand has 19 states, 18 states have (on average 4.0) internal successors, (72), 19 states have internal predecessors, (72), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 20:24:02,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:02,467 INFO L93 Difference]: Finished difference Result 474 states and 637 transitions. [2024-10-24 20:24:02,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 20:24:02,468 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.0) internal successors, (72), 19 states have internal predecessors, (72), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 52 [2024-10-24 20:24:02,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:02,470 INFO L225 Difference]: With dead ends: 474 [2024-10-24 20:24:02,471 INFO L226 Difference]: Without dead ends: 468 [2024-10-24 20:24:02,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2024-10-24 20:24:02,472 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 169 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:02,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 732 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:02,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2024-10-24 20:24:02,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 439. [2024-10-24 20:24:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 367 states have (on average 1.4059945504087195) internal successors, (516), 386 states have internal predecessors, (516), 45 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-24 20:24:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 606 transitions. [2024-10-24 20:24:02,495 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 606 transitions. Word has length 52 [2024-10-24 20:24:02,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:02,495 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 606 transitions. [2024-10-24 20:24:02,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.0) internal successors, (72), 19 states have internal predecessors, (72), 6 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-10-24 20:24:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 606 transitions. [2024-10-24 20:24:02,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-24 20:24:02,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:02,496 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1] [2024-10-24 20:24:02,514 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 20:24:02,700 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,SelfDestructingSolverStorable17 [2024-10-24 20:24:02,701 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:02,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:02,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1114975756, now seen corresponding path program 2 times [2024-10-24 20:24:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:02,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101956500] [2024-10-24 20:24:02,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:02,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:02,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1500801822] [2024-10-24 20:24:02,725 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:02,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:02,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:02,727 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 20:24:02,728 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 20:24:02,780 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:02,780 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:02,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:24:02,785 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:02,917 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:03,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101956500] [2024-10-24 20:24:03,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:03,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500801822] [2024-10-24 20:24:03,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500801822] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:03,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:03,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-24 20:24:03,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954803628] [2024-10-24 20:24:03,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:03,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:03,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:03,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:03,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:03,290 INFO L87 Difference]: Start difference. First operand 439 states and 606 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 20:24:03,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:03,428 INFO L93 Difference]: Finished difference Result 580 states and 791 transitions. [2024-10-24 20:24:03,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:03,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 69 [2024-10-24 20:24:03,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:03,431 INFO L225 Difference]: With dead ends: 580 [2024-10-24 20:24:03,431 INFO L226 Difference]: Without dead ends: 576 [2024-10-24 20:24:03,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:03,432 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 106 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:03,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 179 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-10-24 20:24:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 489. [2024-10-24 20:24:03,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 411 states have (on average 1.391727493917275) internal successors, (572), 430 states have internal predecessors, (572), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:03,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 674 transitions. [2024-10-24 20:24:03,460 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 674 transitions. Word has length 69 [2024-10-24 20:24:03,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:03,461 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 674 transitions. [2024-10-24 20:24:03,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-24 20:24:03,461 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 674 transitions. [2024-10-24 20:24:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-24 20:24:03,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:03,462 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 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] [2024-10-24 20:24:03,480 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-24 20:24:03,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:03,662 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:03,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:03,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1868200099, now seen corresponding path program 1 times [2024-10-24 20:24:03,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:03,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616201180] [2024-10-24 20:24:03,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:03,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:03,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:03,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:24:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-24 20:24:03,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:03,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616201180] [2024-10-24 20:24:03,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616201180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:03,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:03,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:24:03,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590866489] [2024-10-24 20:24:03,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:03,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:24:03,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:03,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:24:03,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:24:03,723 INFO L87 Difference]: Start difference. First operand 489 states and 674 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:03,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:03,802 INFO L93 Difference]: Finished difference Result 489 states and 674 transitions. [2024-10-24 20:24:03,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:24:03,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 76 [2024-10-24 20:24:03,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:03,805 INFO L225 Difference]: With dead ends: 489 [2024-10-24 20:24:03,805 INFO L226 Difference]: Without dead ends: 488 [2024-10-24 20:24:03,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 20:24:03,807 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:03,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-10-24 20:24:03,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2024-10-24 20:24:03,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 411 states have (on average 1.3722627737226278) internal successors, (564), 429 states have internal predecessors, (564), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 666 transitions. [2024-10-24 20:24:03,862 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 666 transitions. Word has length 76 [2024-10-24 20:24:03,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:03,863 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 666 transitions. [2024-10-24 20:24:03,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:03,863 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 666 transitions. [2024-10-24 20:24:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 20:24:03,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:03,864 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 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] [2024-10-24 20:24:03,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 20:24:03,864 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:03,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:03,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2079628105, now seen corresponding path program 1 times [2024-10-24 20:24:03,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:03,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056796356] [2024-10-24 20:24:03,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:03,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:04,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:24:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,043 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:04,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:04,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056796356] [2024-10-24 20:24:04,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056796356] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:04,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471081478] [2024-10-24 20:24:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:04,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:04,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:04,045 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:04,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 20:24:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:24:04,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:04,283 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:04,284 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:04,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471081478] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:04,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:04,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-24 20:24:04,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659336985] [2024-10-24 20:24:04,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:04,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:04,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:04,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:04,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:24:04,286 INFO L87 Difference]: Start difference. First operand 488 states and 666 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:24:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:04,389 INFO L93 Difference]: Finished difference Result 513 states and 688 transitions. [2024-10-24 20:24:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:04,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 77 [2024-10-24 20:24:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:04,392 INFO L225 Difference]: With dead ends: 513 [2024-10-24 20:24:04,392 INFO L226 Difference]: Without dead ends: 512 [2024-10-24 20:24:04,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:24:04,394 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 36 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:04,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 135 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-10-24 20:24:04,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 488. [2024-10-24 20:24:04,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 411 states have (on average 1.362530413625304) internal successors, (560), 429 states have internal predecessors, (560), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:04,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 662 transitions. [2024-10-24 20:24:04,428 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 662 transitions. Word has length 77 [2024-10-24 20:24:04,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:04,429 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 662 transitions. [2024-10-24 20:24:04,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:24:04,429 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 662 transitions. [2024-10-24 20:24:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-24 20:24:04,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:04,430 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 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] [2024-10-24 20:24:04,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-24 20:24:04,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:04,631 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:04,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash -43961697, now seen corresponding path program 1 times [2024-10-24 20:24:04,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:04,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056221925] [2024-10-24 20:24:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:04,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:24:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:04,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:04,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056221925] [2024-10-24 20:24:04,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056221925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:04,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:04,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:24:04,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455052940] [2024-10-24 20:24:04,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:04,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:04,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:04,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:04,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:24:04,786 INFO L87 Difference]: Start difference. First operand 488 states and 662 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:24:04,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:04,894 INFO L93 Difference]: Finished difference Result 517 states and 698 transitions. [2024-10-24 20:24:04,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:04,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-10-24 20:24:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:04,899 INFO L225 Difference]: With dead ends: 517 [2024-10-24 20:24:04,899 INFO L226 Difference]: Without dead ends: 516 [2024-10-24 20:24:04,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 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 20:24:04,900 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 35 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:04,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 106 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:04,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-10-24 20:24:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 500. [2024-10-24 20:24:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 423 states have (on average 1.3522458628841607) internal successors, (572), 441 states have internal predecessors, (572), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 674 transitions. [2024-10-24 20:24:04,933 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 674 transitions. Word has length 78 [2024-10-24 20:24:04,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:04,933 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 674 transitions. [2024-10-24 20:24:04,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-24 20:24:04,934 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 674 transitions. [2024-10-24 20:24:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-24 20:24:04,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:04,934 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 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] [2024-10-24 20:24:04,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 20:24:04,934 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:04,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1362812487, now seen corresponding path program 1 times [2024-10-24 20:24:04,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:04,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227005897] [2024-10-24 20:24:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:05,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:24:05,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,068 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:05,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:05,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227005897] [2024-10-24 20:24:05,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227005897] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:05,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137435151] [2024-10-24 20:24:05,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:05,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:05,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:05,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:05,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 20:24:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:24:05,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-24 20:24:05,286 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:05,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137435151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:05,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:05,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-24 20:24:05,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167513479] [2024-10-24 20:24:05,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:05,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:24:05,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:05,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:24:05,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:05,288 INFO L87 Difference]: Start difference. First operand 500 states and 674 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:05,405 INFO L93 Difference]: Finished difference Result 516 states and 687 transitions. [2024-10-24 20:24:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:24:05,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-10-24 20:24:05,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:05,408 INFO L225 Difference]: With dead ends: 516 [2024-10-24 20:24:05,408 INFO L226 Difference]: Without dead ends: 514 [2024-10-24 20:24:05,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:24:05,409 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 54 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:05,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 81 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-10-24 20:24:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 504. [2024-10-24 20:24:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 427 states have (on average 1.3302107728337236) internal successors, (568), 445 states have internal predecessors, (568), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 670 transitions. [2024-10-24 20:24:05,440 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 670 transitions. Word has length 79 [2024-10-24 20:24:05,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:05,440 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 670 transitions. [2024-10-24 20:24:05,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 670 transitions. [2024-10-24 20:24:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-24 20:24:05,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:05,441 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:05,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:05,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:05,642 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:05,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:05,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1292336151, now seen corresponding path program 1 times [2024-10-24 20:24:05,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:05,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534427498] [2024-10-24 20:24:05,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:05,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-24 20:24:05,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:05,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534427498] [2024-10-24 20:24:05,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534427498] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:05,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302554911] [2024-10-24 20:24:05,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:05,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:05,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:05,783 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:05,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-24 20:24:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:05,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:24:05,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:05,943 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-24 20:24:05,943 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:06,105 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-24 20:24:06,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302554911] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:06,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:06,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 16 [2024-10-24 20:24:06,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413150102] [2024-10-24 20:24:06,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:06,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 20:24:06,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:06,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 20:24:06,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:24:06,108 INFO L87 Difference]: Start difference. First operand 504 states and 670 transitions. Second operand has 16 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-24 20:24:06,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:06,331 INFO L93 Difference]: Finished difference Result 530 states and 692 transitions. [2024-10-24 20:24:06,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 20:24:06,331 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 83 [2024-10-24 20:24:06,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:06,334 INFO L225 Difference]: With dead ends: 530 [2024-10-24 20:24:06,334 INFO L226 Difference]: Without dead ends: 519 [2024-10-24 20:24:06,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 173 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2024-10-24 20:24:06,335 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 62 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:06,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 457 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:06,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2024-10-24 20:24:06,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 512. [2024-10-24 20:24:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 433 states have (on average 1.3117782909930715) internal successors, (568), 451 states have internal predecessors, (568), 51 states have call successors, (51), 9 states have call predecessors, (51), 9 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:06,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 670 transitions. [2024-10-24 20:24:06,366 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 670 transitions. Word has length 83 [2024-10-24 20:24:06,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:06,366 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 670 transitions. [2024-10-24 20:24:06,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.5) internal successors, (72), 16 states have internal predecessors, (72), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-24 20:24:06,367 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 670 transitions. [2024-10-24 20:24:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-24 20:24:06,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:06,368 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 20:24:06,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-24 20:24:06,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-24 20:24:06,569 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:06,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:06,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1411383508, now seen corresponding path program 1 times [2024-10-24 20:24:06,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:06,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104882786] [2024-10-24 20:24:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:06,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:06,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [816426075] [2024-10-24 20:24:06,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:06,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:06,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:06,594 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:06,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-24 20:24:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:06,649 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:24:06,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-24 20:24:06,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:07,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:07,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104882786] [2024-10-24 20:24:07,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:07,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816426075] [2024-10-24 20:24:07,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816426075] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:07,473 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:07,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-24 20:24:07,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136545156] [2024-10-24 20:24:07,473 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:07,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:24:07,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:24:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:24:07,474 INFO L87 Difference]: Start difference. First operand 512 states and 670 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:07,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:07,636 INFO L93 Difference]: Finished difference Result 638 states and 853 transitions. [2024-10-24 20:24:07,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:24:07,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 84 [2024-10-24 20:24:07,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:07,640 INFO L225 Difference]: With dead ends: 638 [2024-10-24 20:24:07,640 INFO L226 Difference]: Without dead ends: 637 [2024-10-24 20:24:07,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:24:07,641 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 91 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:07,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 123 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-10-24 20:24:07,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 593. [2024-10-24 20:24:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 508 states have (on average 1.3385826771653544) internal successors, (680), 526 states have internal predecessors, (680), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-24 20:24:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 794 transitions. [2024-10-24 20:24:07,705 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 794 transitions. Word has length 84 [2024-10-24 20:24:07,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:07,705 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 794 transitions. [2024-10-24 20:24:07,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:07,706 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 794 transitions. [2024-10-24 20:24:07,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-24 20:24:07,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:07,707 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 20:24:07,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-24 20:24:07,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:07,907 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:07,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:07,908 INFO L85 PathProgramCache]: Analyzing trace with hash 803215874, now seen corresponding path program 1 times [2024-10-24 20:24:07,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:07,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416620378] [2024-10-24 20:24:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:07,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:07,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [559785326] [2024-10-24 20:24:07,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:07,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:07,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:07,926 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:07,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-24 20:24:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:07,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:24:07,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:08,205 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-24 20:24:08,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:08,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416620378] [2024-10-24 20:24:08,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:08,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559785326] [2024-10-24 20:24:08,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559785326] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:08,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:08,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-24 20:24:08,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711785551] [2024-10-24 20:24:08,971 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:08,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:08,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:08,972 INFO L87 Difference]: Start difference. First operand 593 states and 794 transitions. Second operand has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:09,118 INFO L93 Difference]: Finished difference Result 603 states and 799 transitions. [2024-10-24 20:24:09,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2024-10-24 20:24:09,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:09,121 INFO L225 Difference]: With dead ends: 603 [2024-10-24 20:24:09,121 INFO L226 Difference]: Without dead ends: 600 [2024-10-24 20:24:09,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:09,122 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 66 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:09,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 98 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:09,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-10-24 20:24:09,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 591. [2024-10-24 20:24:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 508 states have (on average 1.2913385826771653) internal successors, (656), 524 states have internal predecessors, (656), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-24 20:24:09,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 770 transitions. [2024-10-24 20:24:09,156 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 770 transitions. Word has length 85 [2024-10-24 20:24:09,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:09,157 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 770 transitions. [2024-10-24 20:24:09,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.5) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:09,157 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 770 transitions. [2024-10-24 20:24:09,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-24 20:24:09,158 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:09,158 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 20:24:09,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:09,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:09,363 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:09,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:09,363 INFO L85 PathProgramCache]: Analyzing trace with hash -870111594, now seen corresponding path program 1 times [2024-10-24 20:24:09,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:09,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841456093] [2024-10-24 20:24:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:09,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:09,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:24:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-24 20:24:09,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:09,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841456093] [2024-10-24 20:24:09,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841456093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:09,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:09,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:24:09,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839185909] [2024-10-24 20:24:09,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:09,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:09,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:09,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:09,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:09,478 INFO L87 Difference]: Start difference. First operand 591 states and 770 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:09,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:09,932 INFO L93 Difference]: Finished difference Result 600 states and 778 transitions. [2024-10-24 20:24:09,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:24:09,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2024-10-24 20:24:09,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:09,935 INFO L225 Difference]: With dead ends: 600 [2024-10-24 20:24:09,936 INFO L226 Difference]: Without dead ends: 599 [2024-10-24 20:24:09,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:09,937 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 71 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:09,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 169 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:24:09,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-10-24 20:24:09,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 590. [2024-10-24 20:24:09,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 508 states have (on average 1.2598425196850394) internal successors, (640), 523 states have internal predecessors, (640), 57 states have call successors, (57), 9 states have call predecessors, (57), 9 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-24 20:24:09,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 754 transitions. [2024-10-24 20:24:09,973 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 754 transitions. Word has length 86 [2024-10-24 20:24:09,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:09,973 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 754 transitions. [2024-10-24 20:24:09,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:09,974 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 754 transitions. [2024-10-24 20:24:09,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 20:24:09,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:09,975 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 20:24:09,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-24 20:24:09,975 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:09,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1203655548, now seen corresponding path program 1 times [2024-10-24 20:24:09,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:09,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496960951] [2024-10-24 20:24:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:09,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:09,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:10,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:24:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:10,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:10,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496960951] [2024-10-24 20:24:10,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496960951] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:10,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972338594] [2024-10-24 20:24:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:10,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:10,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:10,181 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:10,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-24 20:24:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:10,249 INFO L255 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 20:24:10,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:10,668 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-24 20:24:10,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:11,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972338594] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:11,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:24:11,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-10-24 20:24:11,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474081250] [2024-10-24 20:24:11,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:11,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 20:24:11,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:11,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 20:24:11,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-24 20:24:11,454 INFO L87 Difference]: Start difference. First operand 590 states and 754 transitions. Second operand has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-10-24 20:24:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:13,146 INFO L93 Difference]: Finished difference Result 917 states and 1206 transitions. [2024-10-24 20:24:13,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-24 20:24:13,147 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 87 [2024-10-24 20:24:13,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:13,152 INFO L225 Difference]: With dead ends: 917 [2024-10-24 20:24:13,152 INFO L226 Difference]: Without dead ends: 908 [2024-10-24 20:24:13,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=353, Invalid=1287, Unknown=0, NotChecked=0, Total=1640 [2024-10-24 20:24:13,154 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 527 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 783 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:13,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 443 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 783 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 20:24:13,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-10-24 20:24:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 703. [2024-10-24 20:24:13,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 703 states, 611 states have (on average 1.2700490998363339) internal successors, (776), 626 states have internal predecessors, (776), 67 states have call successors, (67), 9 states have call predecessors, (67), 9 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-10-24 20:24:13,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 703 states to 703 states and 910 transitions. [2024-10-24 20:24:13,202 INFO L78 Accepts]: Start accepts. Automaton has 703 states and 910 transitions. Word has length 87 [2024-10-24 20:24:13,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:13,202 INFO L471 AbstractCegarLoop]: Abstraction has 703 states and 910 transitions. [2024-10-24 20:24:13,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 16 states have internal predecessors, (97), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-10-24 20:24:13,202 INFO L276 IsEmpty]: Start isEmpty. Operand 703 states and 910 transitions. [2024-10-24 20:24:13,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-24 20:24:13,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:13,204 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 20:24:13,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-24 20:24:13,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:13,408 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:13,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:13,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1494603811, now seen corresponding path program 1 times [2024-10-24 20:24:13,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:13,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576294774] [2024-10-24 20:24:13,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:13,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:13,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472255941] [2024-10-24 20:24:13,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:13,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:13,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:13,440 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:13,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-24 20:24:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:13,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 20:24:13,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 3 proven. 47 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-24 20:24:13,867 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:14,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:14,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576294774] [2024-10-24 20:24:14,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:14,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472255941] [2024-10-24 20:24:14,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472255941] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:14,356 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:14,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-24 20:24:14,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921167335] [2024-10-24 20:24:14,356 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:14,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 20:24:14,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:14,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 20:24:14,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:24:14,358 INFO L87 Difference]: Start difference. First operand 703 states and 910 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-24 20:24:14,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:14,728 INFO L93 Difference]: Finished difference Result 727 states and 925 transitions. [2024-10-24 20:24:14,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:24:14,728 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2024-10-24 20:24:14,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:14,731 INFO L225 Difference]: With dead ends: 727 [2024-10-24 20:24:14,731 INFO L226 Difference]: Without dead ends: 552 [2024-10-24 20:24:14,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:24:14,733 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 20 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:14,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 302 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:14,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-24 20:24:14,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 550. [2024-10-24 20:24:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 470 states have (on average 1.2595744680851064) internal successors, (592), 485 states have internal predecessors, (592), 55 states have call successors, (55), 9 states have call predecessors, (55), 9 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-24 20:24:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 702 transitions. [2024-10-24 20:24:14,770 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 702 transitions. Word has length 101 [2024-10-24 20:24:14,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:14,770 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 702 transitions. [2024-10-24 20:24:14,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-24 20:24:14,770 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 702 transitions. [2024-10-24 20:24:14,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-24 20:24:14,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:14,771 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-24 20:24:14,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-24 20:24:14,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-24 20:24:14,972 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:14,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:14,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1795189669, now seen corresponding path program 1 times [2024-10-24 20:24:14,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:14,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496952325] [2024-10-24 20:24:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-24 20:24:15,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-24 20:24:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-24 20:24:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,110 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-10-24 20:24:15,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:15,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496952325] [2024-10-24 20:24:15,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496952325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:15,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:24:15,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:24:15,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887901623] [2024-10-24 20:24:15,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:15,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:15,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:15,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:15,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:15,113 INFO L87 Difference]: Start difference. First operand 550 states and 702 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 20:24:15,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:15,468 INFO L93 Difference]: Finished difference Result 554 states and 703 transitions. [2024-10-24 20:24:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:24:15,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 103 [2024-10-24 20:24:15,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:15,470 INFO L225 Difference]: With dead ends: 554 [2024-10-24 20:24:15,470 INFO L226 Difference]: Without dead ends: 511 [2024-10-24 20:24:15,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:24:15,471 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 32 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:15,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 225 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:15,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-10-24 20:24:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 506. [2024-10-24 20:24:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 432 states have (on average 1.2777777777777777) internal successors, (552), 446 states have internal predecessors, (552), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-24 20:24:15,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 654 transitions. [2024-10-24 20:24:15,505 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 654 transitions. Word has length 103 [2024-10-24 20:24:15,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:15,505 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 654 transitions. [2024-10-24 20:24:15,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-24 20:24:15,505 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 654 transitions. [2024-10-24 20:24:15,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-24 20:24:15,506 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:15,506 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1] [2024-10-24 20:24:15,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-24 20:24:15,507 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:15,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1390862043, now seen corresponding path program 1 times [2024-10-24 20:24:15,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:15,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601386980] [2024-10-24 20:24:15,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:15,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 20:24:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 20:24:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,602 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:15,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:15,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601386980] [2024-10-24 20:24:15,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601386980] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:15,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133300619] [2024-10-24 20:24:15,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:15,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:15,605 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:15,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-24 20:24:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:15,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:15,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:15,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:15,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133300619] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:15,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:15,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-24 20:24:15,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060949183] [2024-10-24 20:24:15,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:15,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 20:24:15,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:15,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 20:24:15,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:24:15,855 INFO L87 Difference]: Start difference. First operand 506 states and 654 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-10-24 20:24:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:16,134 INFO L93 Difference]: Finished difference Result 1056 states and 1356 transitions. [2024-10-24 20:24:16,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 20:24:16,134 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 105 [2024-10-24 20:24:16,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:16,138 INFO L225 Difference]: With dead ends: 1056 [2024-10-24 20:24:16,138 INFO L226 Difference]: Without dead ends: 1054 [2024-10-24 20:24:16,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:24:16,139 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 545 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:16,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 411 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:24:16,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2024-10-24 20:24:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 692. [2024-10-24 20:24:16,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 594 states have (on average 1.2878787878787878) internal successors, (765), 608 states have internal predecessors, (765), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:16,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 915 transitions. [2024-10-24 20:24:16,202 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 915 transitions. Word has length 105 [2024-10-24 20:24:16,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:16,203 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 915 transitions. [2024-10-24 20:24:16,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 8 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2024-10-24 20:24:16,203 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 915 transitions. [2024-10-24 20:24:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-24 20:24:16,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:16,204 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2024-10-24 20:24:16,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-24 20:24:16,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:16,405 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:16,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:16,406 INFO L85 PathProgramCache]: Analyzing trace with hash 317797507, now seen corresponding path program 2 times [2024-10-24 20:24:16,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:16,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655060959] [2024-10-24 20:24:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:16,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:16,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625202678] [2024-10-24 20:24:16,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:16,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:16,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:16,422 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:16,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-24 20:24:16,486 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:16,486 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:16,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-24 20:24:16,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:17,029 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-24 20:24:17,029 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:17,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:17,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655060959] [2024-10-24 20:24:17,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:17,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625202678] [2024-10-24 20:24:17,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625202678] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:17,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:17,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:24:17,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417917852] [2024-10-24 20:24:17,853 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:17,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:24:17,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:17,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:24:17,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:24:17,854 INFO L87 Difference]: Start difference. First operand 692 states and 915 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 20:24:18,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:18,529 INFO L93 Difference]: Finished difference Result 720 states and 950 transitions. [2024-10-24 20:24:18,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:24:18,530 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-10-24 20:24:18,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:18,533 INFO L225 Difference]: With dead ends: 720 [2024-10-24 20:24:18,533 INFO L226 Difference]: Without dead ends: 719 [2024-10-24 20:24:18,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:24:18,534 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 34 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 1005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:18,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 533 Invalid, 1005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 20:24:18,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2024-10-24 20:24:18,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 692. [2024-10-24 20:24:18,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 594 states have (on average 1.2861952861952861) internal successors, (764), 608 states have internal predecessors, (764), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:18,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 914 transitions. [2024-10-24 20:24:18,583 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 914 transitions. Word has length 113 [2024-10-24 20:24:18,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:18,584 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 914 transitions. [2024-10-24 20:24:18,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-24 20:24:18,584 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 914 transitions. [2024-10-24 20:24:18,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-24 20:24:18,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:18,585 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:18,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:18,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:18,790 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:18,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:18,790 INFO L85 PathProgramCache]: Analyzing trace with hash 974894515, now seen corresponding path program 1 times [2024-10-24 20:24:18,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:18,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151976233] [2024-10-24 20:24:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:18,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:18,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 20:24:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 20:24:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:18,968 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:18,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:18,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151976233] [2024-10-24 20:24:18,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151976233] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:18,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [34999985] [2024-10-24 20:24:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:18,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:18,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:18,971 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:18,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-24 20:24:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:24:19,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 316 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-24 20:24:19,150 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:19,298 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-24 20:24:19,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [34999985] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:19,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:19,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 15 [2024-10-24 20:24:19,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100862213] [2024-10-24 20:24:19,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:19,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 20:24:19,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 20:24:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:24:19,300 INFO L87 Difference]: Start difference. First operand 692 states and 914 transitions. Second operand has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 15 states have internal predecessors, (77), 4 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-24 20:24:19,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:19,440 INFO L93 Difference]: Finished difference Result 846 states and 1109 transitions. [2024-10-24 20:24:19,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 20:24:19,441 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 15 states have internal predecessors, (77), 4 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 117 [2024-10-24 20:24:19,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:19,443 INFO L225 Difference]: With dead ends: 846 [2024-10-24 20:24:19,443 INFO L226 Difference]: Without dead ends: 692 [2024-10-24 20:24:19,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 245 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=340, Unknown=0, NotChecked=0, Total=506 [2024-10-24 20:24:19,445 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 22 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:19,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 604 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:19,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-10-24 20:24:19,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2024-10-24 20:24:19,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 594 states have (on average 1.2845117845117846) internal successors, (763), 608 states have internal predecessors, (763), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 913 transitions. [2024-10-24 20:24:19,492 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 913 transitions. Word has length 117 [2024-10-24 20:24:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:19,493 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 913 transitions. [2024-10-24 20:24:19,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.133333333333334) internal successors, (77), 15 states have internal predecessors, (77), 4 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-24 20:24:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 913 transitions. [2024-10-24 20:24:19,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-24 20:24:19,494 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:19,494 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:19,511 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-24 20:24:19,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:19,695 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:19,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:19,695 INFO L85 PathProgramCache]: Analyzing trace with hash 572857500, now seen corresponding path program 1 times [2024-10-24 20:24:19,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:19,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811617819] [2024-10-24 20:24:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:19,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:19,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:19,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 20:24:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 20:24:19,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 20:24:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,823 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:19,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:19,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811617819] [2024-10-24 20:24:19,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811617819] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:19,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864912452] [2024-10-24 20:24:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:19,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:19,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:19,826 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:19,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-24 20:24:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:19,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:19,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked. [2024-10-24 20:24:20,079 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:24:20,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864912452] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:24:20,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:20,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-24 20:24:20,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144616476] [2024-10-24 20:24:20,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:24:20,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:24:20,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:20,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:24:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:20,096 INFO L87 Difference]: Start difference. First operand 692 states and 913 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:20,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:20,200 INFO L93 Difference]: Finished difference Result 698 states and 915 transitions. [2024-10-24 20:24:20,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:24:20,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 126 [2024-10-24 20:24:20,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:20,203 INFO L225 Difference]: With dead ends: 698 [2024-10-24 20:24:20,203 INFO L226 Difference]: Without dead ends: 693 [2024-10-24 20:24:20,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:24:20,204 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 10 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:20,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 80 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:20,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-10-24 20:24:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 690. [2024-10-24 20:24:20,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 592 states have (on average 1.2567567567567568) internal successors, (744), 606 states have internal predecessors, (744), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:20,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 894 transitions. [2024-10-24 20:24:20,248 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 894 transitions. Word has length 126 [2024-10-24 20:24:20,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:20,248 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 894 transitions. [2024-10-24 20:24:20,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-24 20:24:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 894 transitions. [2024-10-24 20:24:20,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-24 20:24:20,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:20,251 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:20,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:20,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:20,452 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:20,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:20,452 INFO L85 PathProgramCache]: Analyzing trace with hash 203159010, now seen corresponding path program 2 times [2024-10-24 20:24:20,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:20,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316414043] [2024-10-24 20:24:20,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:20,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 20:24:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 20:24:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 20:24:20,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:20,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:20,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316414043] [2024-10-24 20:24:20,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316414043] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:20,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756540985] [2024-10-24 20:24:20,585 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:20,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:20,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:20,587 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:20,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-24 20:24:20,651 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:20,651 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:20,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:24:20,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:20,736 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:20,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:20,877 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 34 proven. 13 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:20,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756540985] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:20,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:20,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-10-24 20:24:20,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400904719] [2024-10-24 20:24:20,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:20,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:24:20,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:20,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:24:20,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:20,878 INFO L87 Difference]: Start difference. First operand 690 states and 894 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 20:24:20,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:20,994 INFO L93 Difference]: Finished difference Result 713 states and 912 transitions. [2024-10-24 20:24:20,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:24:20,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2024-10-24 20:24:20,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:20,998 INFO L225 Difference]: With dead ends: 713 [2024-10-24 20:24:20,999 INFO L226 Difference]: Without dead ends: 706 [2024-10-24 20:24:20,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 276 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:24:21,000 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 52 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:21,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 179 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:24:21,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2024-10-24 20:24:21,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 690. [2024-10-24 20:24:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 592 states have (on average 1.25) internal successors, (740), 606 states have internal predecessors, (740), 75 states have call successors, (75), 8 states have call predecessors, (75), 8 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-24 20:24:21,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 890 transitions. [2024-10-24 20:24:21,071 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 890 transitions. Word has length 127 [2024-10-24 20:24:21,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:21,071 INFO L471 AbstractCegarLoop]: Abstraction has 690 states and 890 transitions. [2024-10-24 20:24:21,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-24 20:24:21,071 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 890 transitions. [2024-10-24 20:24:21,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 20:24:21,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:21,073 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1] [2024-10-24 20:24:21,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:21,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-10-24 20:24:21,274 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:21,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:21,275 INFO L85 PathProgramCache]: Analyzing trace with hash 465088482, now seen corresponding path program 2 times [2024-10-24 20:24:21,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:21,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021973611] [2024-10-24 20:24:21,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:21,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 20:24:21,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 20:24:21,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 20:24:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-24 20:24:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-24 20:24:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:24:21,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021973611] [2024-10-24 20:24:21,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021973611] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:21,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706241240] [2024-10-24 20:24:21,409 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:24:21,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:21,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:21,411 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:21,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-24 20:24:21,477 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:24:21,478 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:24:21,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:24:21,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:21,559 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:24:21,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-10-24 20:24:21,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706241240] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:21,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:21,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2024-10-24 20:24:21,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000696923] [2024-10-24 20:24:21,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:21,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:24:21,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:21,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:24:21,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:24:21,700 INFO L87 Difference]: Start difference. First operand 690 states and 890 transitions. Second operand has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-10-24 20:24:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:22,034 INFO L93 Difference]: Finished difference Result 1532 states and 2010 transitions. [2024-10-24 20:24:22,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 20:24:22,034 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) Word has length 129 [2024-10-24 20:24:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:22,040 INFO L225 Difference]: With dead ends: 1532 [2024-10-24 20:24:22,040 INFO L226 Difference]: Without dead ends: 1530 [2024-10-24 20:24:22,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:24:22,042 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 427 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:22,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 482 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:24:22,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2024-10-24 20:24:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 716. [2024-10-24 20:24:22,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 612 states have (on average 1.2401960784313726) internal successors, (759), 626 states have internal predecessors, (759), 81 states have call successors, (81), 8 states have call predecessors, (81), 8 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-10-24 20:24:22,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 921 transitions. [2024-10-24 20:24:22,117 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 921 transitions. Word has length 129 [2024-10-24 20:24:22,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:22,117 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 921 transitions. [2024-10-24 20:24:22,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 13 states have internal predecessors, (121), 11 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 11 states have call predecessors, (33), 11 states have call successors, (33) [2024-10-24 20:24:22,118 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 921 transitions. [2024-10-24 20:24:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-24 20:24:22,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:22,120 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:22,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-10-24 20:24:22,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-24 20:24:22,320 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:22,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:22,321 INFO L85 PathProgramCache]: Analyzing trace with hash -168836972, now seen corresponding path program 1 times [2024-10-24 20:24:22,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:22,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170076122] [2024-10-24 20:24:22,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:22,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:22,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 20:24:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-24 20:24:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-24 20:24:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,558 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:22,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:22,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170076122] [2024-10-24 20:24:22,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170076122] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:22,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221595724] [2024-10-24 20:24:22,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:22,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:22,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:22,562 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:22,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-24 20:24:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:22,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:24:22,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:22,928 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 28 proven. 24 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:22,928 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:23,332 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 34 proven. 18 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:23,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221595724] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:23,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:23,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 19 [2024-10-24 20:24:23,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236055621] [2024-10-24 20:24:23,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:23,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 20:24:23,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:23,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 20:24:23,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2024-10-24 20:24:23,334 INFO L87 Difference]: Start difference. First operand 716 states and 921 transitions. Second operand has 20 states, 19 states have (on average 10.263157894736842) internal successors, (195), 20 states have internal predecessors, (195), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:23,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:23,870 INFO L93 Difference]: Finished difference Result 1015 states and 1306 transitions. [2024-10-24 20:24:23,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-24 20:24:23,871 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 10.263157894736842) internal successors, (195), 20 states have internal predecessors, (195), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 129 [2024-10-24 20:24:23,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:23,873 INFO L225 Difference]: With dead ends: 1015 [2024-10-24 20:24:23,874 INFO L226 Difference]: Without dead ends: 905 [2024-10-24 20:24:23,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=346, Invalid=914, Unknown=0, NotChecked=0, Total=1260 [2024-10-24 20:24:23,875 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 584 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:23,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 586 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2024-10-24 20:24:23,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 702. [2024-10-24 20:24:23,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 594 states have (on average 1.2643097643097643) internal successors, (751), 608 states have internal predecessors, (751), 85 states have call successors, (85), 8 states have call predecessors, (85), 8 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-24 20:24:23,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 921 transitions. [2024-10-24 20:24:23,935 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 921 transitions. Word has length 129 [2024-10-24 20:24:23,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:23,936 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 921 transitions. [2024-10-24 20:24:23,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 10.263157894736842) internal successors, (195), 20 states have internal predecessors, (195), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:23,936 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 921 transitions. [2024-10-24 20:24:23,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 20:24:23,937 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:23,937 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-24 20:24:23,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-10-24 20:24:24,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-24 20:24:24,138 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:24,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:24,138 INFO L85 PathProgramCache]: Analyzing trace with hash -687537624, now seen corresponding path program 1 times [2024-10-24 20:24:24,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:24,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960096546] [2024-10-24 20:24:24,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:24,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 20:24:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 20:24:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 20:24:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,410 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-10-24 20:24:24,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:24,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960096546] [2024-10-24 20:24:24,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960096546] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:24,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434670556] [2024-10-24 20:24:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:24,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:24,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:24,414 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:24,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-24 20:24:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:24,479 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:24:24,481 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:24,719 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:24,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:27,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434670556] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:27,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:27,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 8] total 20 [2024-10-24 20:24:27,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122663849] [2024-10-24 20:24:27,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:27,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 20:24:27,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:27,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 20:24:27,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:24:27,592 INFO L87 Difference]: Start difference. First operand 702 states and 921 transitions. Second operand has 21 states, 20 states have (on average 10.05) internal successors, (201), 21 states have internal predecessors, (201), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-10-24 20:24:28,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:28,017 INFO L93 Difference]: Finished difference Result 947 states and 1272 transitions. [2024-10-24 20:24:28,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:24:28,018 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 10.05) internal successors, (201), 21 states have internal predecessors, (201), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) Word has length 134 [2024-10-24 20:24:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:28,022 INFO L225 Difference]: With dead ends: 947 [2024-10-24 20:24:28,022 INFO L226 Difference]: Without dead ends: 946 [2024-10-24 20:24:28,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=204, Invalid=396, Unknown=0, NotChecked=0, Total=600 [2024-10-24 20:24:28,023 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 364 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:28,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 414 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-10-24 20:24:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 701. [2024-10-24 20:24:28,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 594 states have (on average 1.2575757575757576) internal successors, (747), 607 states have internal predecessors, (747), 85 states have call successors, (85), 8 states have call predecessors, (85), 8 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-10-24 20:24:28,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 917 transitions. [2024-10-24 20:24:28,088 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 917 transitions. Word has length 134 [2024-10-24 20:24:28,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:28,088 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 917 transitions. [2024-10-24 20:24:28,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 10.05) internal successors, (201), 21 states have internal predecessors, (201), 11 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 11 states have call predecessors, (36), 11 states have call successors, (36) [2024-10-24 20:24:28,089 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 917 transitions. [2024-10-24 20:24:28,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-24 20:24:28,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:28,090 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:28,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:28,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:28,291 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:28,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:28,292 INFO L85 PathProgramCache]: Analyzing trace with hash -687280427, now seen corresponding path program 1 times [2024-10-24 20:24:28,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:28,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035090155] [2024-10-24 20:24:28,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:28,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 20:24:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 20:24:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 20:24:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:28,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:28,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035090155] [2024-10-24 20:24:28,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035090155] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:28,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751391557] [2024-10-24 20:24:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:28,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:28,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:28,567 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:28,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-24 20:24:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:28,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 20:24:28,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 320 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-24 20:24:28,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 6 proven. 52 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:29,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751391557] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:29,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:29,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 35 [2024-10-24 20:24:29,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026944471] [2024-10-24 20:24:29,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:29,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-24 20:24:29,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:29,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-24 20:24:29,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2024-10-24 20:24:29,166 INFO L87 Difference]: Start difference. First operand 701 states and 917 transitions. Second operand has 36 states, 35 states have (on average 6.3428571428571425) internal successors, (222), 36 states have internal predecessors, (222), 14 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 14 states have call predecessors, (39), 14 states have call successors, (39) [2024-10-24 20:24:29,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:29,793 INFO L93 Difference]: Finished difference Result 2523 states and 3379 transitions. [2024-10-24 20:24:29,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-10-24 20:24:29,793 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.3428571428571425) internal successors, (222), 36 states have internal predecessors, (222), 14 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 14 states have call predecessors, (39), 14 states have call successors, (39) Word has length 134 [2024-10-24 20:24:29,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:29,802 INFO L225 Difference]: With dead ends: 2523 [2024-10-24 20:24:29,802 INFO L226 Difference]: Without dead ends: 2522 [2024-10-24 20:24:29,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 714 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=859, Invalid=2801, Unknown=0, NotChecked=0, Total=3660 [2024-10-24 20:24:29,805 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 595 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 595 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:29,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [595 Valid, 990 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:24:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2024-10-24 20:24:29,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2424. [2024-10-24 20:24:29,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2143 states have (on average 1.2785814279048064) internal successors, (2740), 2156 states have internal predecessors, (2740), 251 states have call successors, (251), 16 states have call predecessors, (251), 16 states have return successors, (251), 251 states have call predecessors, (251), 251 states have call successors, (251) [2024-10-24 20:24:29,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3242 transitions. [2024-10-24 20:24:29,955 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3242 transitions. Word has length 134 [2024-10-24 20:24:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:29,955 INFO L471 AbstractCegarLoop]: Abstraction has 2424 states and 3242 transitions. [2024-10-24 20:24:29,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.3428571428571425) internal successors, (222), 36 states have internal predecessors, (222), 14 states have call successors, (39), 6 states have call predecessors, (39), 6 states have return successors, (39), 14 states have call predecessors, (39), 14 states have call successors, (39) [2024-10-24 20:24:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3242 transitions. [2024-10-24 20:24:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 20:24:29,957 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:29,957 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-24 20:24:29,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-10-24 20:24:30,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-10-24 20:24:30,158 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:30,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:30,158 INFO L85 PathProgramCache]: Analyzing trace with hash 161170256, now seen corresponding path program 1 times [2024-10-24 20:24:30,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:30,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340635384] [2024-10-24 20:24:30,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:30,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-24 20:24:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-24 20:24:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-24 20:24:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 20:24:30,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-24 20:24:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-24 20:24:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 20:24:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 20:24:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 20:24:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-24 20:24:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-24 20:24:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-24 20:24:30,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-24 20:24:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:30,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:30,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340635384] [2024-10-24 20:24:30,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340635384] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:30,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670408761] [2024-10-24 20:24:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:30,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:30,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:30,375 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:30,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-24 20:24:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:30,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-24 20:24:30,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:30,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:32,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670408761] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:24:32,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:24:32,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2024-10-24 20:24:32,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134585081] [2024-10-24 20:24:32,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:32,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-24 20:24:32,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:32,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-24 20:24:32,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=300, Unknown=0, NotChecked=0, Total=462 [2024-10-24 20:24:32,273 INFO L87 Difference]: Start difference. First operand 2424 states and 3242 transitions. Second operand has 22 states, 21 states have (on average 10.142857142857142) internal successors, (213), 22 states have internal predecessors, (213), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:33,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:33,268 INFO L93 Difference]: Finished difference Result 3280 states and 4367 transitions. [2024-10-24 20:24:33,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 20:24:33,269 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.142857142857142) internal successors, (213), 22 states have internal predecessors, (213), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 135 [2024-10-24 20:24:33,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:33,279 INFO L225 Difference]: With dead ends: 3280 [2024-10-24 20:24:33,280 INFO L226 Difference]: Without dead ends: 3279 [2024-10-24 20:24:33,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=424, Invalid=698, Unknown=0, NotChecked=0, Total=1122 [2024-10-24 20:24:33,281 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 536 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:33,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 750 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 20:24:33,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2024-10-24 20:24:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2954. [2024-10-24 20:24:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2627 states have (on average 1.274457556147697) internal successors, (3348), 2640 states have internal predecessors, (3348), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-10-24 20:24:33,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 3942 transitions. [2024-10-24 20:24:33,477 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 3942 transitions. Word has length 135 [2024-10-24 20:24:33,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:33,478 INFO L471 AbstractCegarLoop]: Abstraction has 2954 states and 3942 transitions. [2024-10-24 20:24:33,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.142857142857142) internal successors, (213), 22 states have internal predecessors, (213), 12 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-10-24 20:24:33,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 3942 transitions. [2024-10-24 20:24:33,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 20:24:33,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:33,479 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 20:24:33,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:33,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-24 20:24:33,680 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:33,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:33,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1848146500, now seen corresponding path program 1 times [2024-10-24 20:24:33,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:33,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774248690] [2024-10-24 20:24:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:33,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:33,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802807059] [2024-10-24 20:24:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:33,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:33,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:33,709 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:33,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-24 20:24:33,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:33,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 20:24:33,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 20:24:34,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:34,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:34,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774248690] [2024-10-24 20:24:34,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:34,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802807059] [2024-10-24 20:24:34,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802807059] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:34,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:34,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:24:34,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110424930] [2024-10-24 20:24:34,851 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:34,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:24:34,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:34,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:24:34,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:24:34,852 INFO L87 Difference]: Start difference. First operand 2954 states and 3942 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 20:24:35,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:35,502 INFO L93 Difference]: Finished difference Result 2979 states and 3972 transitions. [2024-10-24 20:24:35,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 20:24:35,503 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 136 [2024-10-24 20:24:35,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:35,514 INFO L225 Difference]: With dead ends: 2979 [2024-10-24 20:24:35,514 INFO L226 Difference]: Without dead ends: 2978 [2024-10-24 20:24:35,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:24:35,515 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 37 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:35,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 596 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:24:35,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2024-10-24 20:24:35,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2963. [2024-10-24 20:24:35,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2636 states have (on average 1.2738998482549317) internal successors, (3358), 2649 states have internal predecessors, (3358), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-10-24 20:24:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 3952 transitions. [2024-10-24 20:24:35,696 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 3952 transitions. Word has length 136 [2024-10-24 20:24:35,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:35,697 INFO L471 AbstractCegarLoop]: Abstraction has 2963 states and 3952 transitions. [2024-10-24 20:24:35,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 20:24:35,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 3952 transitions. [2024-10-24 20:24:35,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-24 20:24:35,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:35,698 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:35,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:35,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:35,902 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:35,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:35,903 INFO L85 PathProgramCache]: Analyzing trace with hash 948475845, now seen corresponding path program 1 times [2024-10-24 20:24:35,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:35,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535980724] [2024-10-24 20:24:35,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:35,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:35,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736847341] [2024-10-24 20:24:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:35,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:35,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:35,925 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:35,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-24 20:24:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:35,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-24 20:24:35,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:36,422 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:36,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:39,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:39,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535980724] [2024-10-24 20:24:39,560 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:39,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736847341] [2024-10-24 20:24:39,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736847341] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:39,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:39,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-24 20:24:39,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28921000] [2024-10-24 20:24:39,560 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:39,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 20:24:39,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:39,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 20:24:39,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=263, Unknown=0, NotChecked=0, Total=380 [2024-10-24 20:24:39,561 INFO L87 Difference]: Start difference. First operand 2963 states and 3952 transitions. Second operand has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 20:24:40,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:40,027 INFO L93 Difference]: Finished difference Result 2969 states and 3958 transitions. [2024-10-24 20:24:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 20:24:40,027 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 136 [2024-10-24 20:24:40,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:40,037 INFO L225 Difference]: With dead ends: 2969 [2024-10-24 20:24:40,037 INFO L226 Difference]: Without dead ends: 2967 [2024-10-24 20:24:40,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=291, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:24:40,038 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 63 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:40,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 434 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:40,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2024-10-24 20:24:40,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2963. [2024-10-24 20:24:40,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2963 states, 2636 states have (on average 1.2735204855842186) internal successors, (3357), 2649 states have internal predecessors, (3357), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-10-24 20:24:40,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2963 states to 2963 states and 3951 transitions. [2024-10-24 20:24:40,244 INFO L78 Accepts]: Start accepts. Automaton has 2963 states and 3951 transitions. Word has length 136 [2024-10-24 20:24:40,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:40,247 INFO L471 AbstractCegarLoop]: Abstraction has 2963 states and 3951 transitions. [2024-10-24 20:24:40,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-24 20:24:40,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2963 states and 3951 transitions. [2024-10-24 20:24:40,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 20:24:40,248 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:40,248 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 20:24:40,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:40,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:40,449 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:40,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:40,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1457966782, now seen corresponding path program 1 times [2024-10-24 20:24:40,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:40,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24753453] [2024-10-24 20:24:40,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:40,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:40,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:40,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239226288] [2024-10-24 20:24:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:40,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:40,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:40,475 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:40,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-10-24 20:24:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:40,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-24 20:24:40,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 20:24:40,868 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:24:41,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:24:41,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24753453] [2024-10-24 20:24:41,931 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:24:41,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239226288] [2024-10-24 20:24:41,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239226288] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:24:41,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:24:41,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:24:41,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182129171] [2024-10-24 20:24:41,932 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:24:41,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:24:41,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:24:41,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:24:41,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:24:41,933 INFO L87 Difference]: Start difference. First operand 2963 states and 3951 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 20:24:42,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:24:42,357 INFO L93 Difference]: Finished difference Result 2980 states and 3971 transitions. [2024-10-24 20:24:42,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:24:42,358 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 137 [2024-10-24 20:24:42,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:24:42,365 INFO L225 Difference]: With dead ends: 2980 [2024-10-24 20:24:42,365 INFO L226 Difference]: Without dead ends: 2979 [2024-10-24 20:24:42,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:24:42,370 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 43 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:24:42,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 425 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:24:42,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2024-10-24 20:24:42,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2965. [2024-10-24 20:24:42,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 2638 states have (on average 1.2733131159969675) internal successors, (3359), 2651 states have internal predecessors, (3359), 297 states have call successors, (297), 16 states have call predecessors, (297), 16 states have return successors, (297), 297 states have call predecessors, (297), 297 states have call successors, (297) [2024-10-24 20:24:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 3953 transitions. [2024-10-24 20:24:42,593 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 3953 transitions. Word has length 137 [2024-10-24 20:24:42,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:24:42,593 INFO L471 AbstractCegarLoop]: Abstraction has 2965 states and 3953 transitions. [2024-10-24 20:24:42,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 12 states have internal predecessors, (70), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-24 20:24:42,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 3953 transitions. [2024-10-24 20:24:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-24 20:24:42,595 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:24:42,595 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:24:42,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-10-24 20:24:42,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-10-24 20:24:42,796 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-24 20:24:42,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:24:42,797 INFO L85 PathProgramCache]: Analyzing trace with hash -662019747, now seen corresponding path program 1 times [2024-10-24 20:24:42,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:24:42,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096853326] [2024-10-24 20:24:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:42,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:24:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:24:42,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237285962] [2024-10-24 20:24:42,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:24:42,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:24:42,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:24:42,816 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:24:42,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-10-24 20:24:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:24:42,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 20:24:42,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:24:43,274 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-24 20:24:43,274 INFO L311 TraceCheckSpWp]: Computing backward predicates...