./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/prod4br-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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/prod4br-ll_valuebound50.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 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:58:53,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:58:53,149 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:58:53,155 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:58:53,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:58:53,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:58:53,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:58:53,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:58:53,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:58:53,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:58:53,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:58:53,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:58:53,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:58:53,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:58:53,187 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:58:53,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:58:53,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:58:53,188 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:58:53,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:58:53,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:58:53,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:58:53,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:58:53,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:58:53,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:58:53,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:58:53,190 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:58:53,191 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:58:53,191 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:58:53,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:58:53,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:58:53,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:58:53,192 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:58:53,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:58:53,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:58:53,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:58:53,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:58:53,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:58:53,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:58:53,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:58:53,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:58:53,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:58:53,196 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:58:53,196 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:58:53,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:58:53,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 [2024-10-14 20:58:53,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:58:53,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:58:53,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:58:53,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:58:53,499 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:58:53,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2024-10-14 20:58:54,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:58:55,138 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:58:55,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2024-10-14 20:58:55,152 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c6e3ced/0d1f57655ec04a2e827b32b8830dcb68/FLAG301d0683d [2024-10-14 20:58:55,502 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5c6e3ced/0d1f57655ec04a2e827b32b8830dcb68 [2024-10-14 20:58:55,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:58:55,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:58:55,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:58:55,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:58:55,513 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:58:55,514 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6d179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55, skipping insertion in model container [2024-10-14 20:58:55,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,533 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:58:55,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:58:55,725 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:58:55,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:58:55,766 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:58:55,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55 WrapperNode [2024-10-14 20:58:55,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:58:55,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:58:55,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:58:55,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:58:55,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,780 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,814 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2024-10-14 20:58:55,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:58:55,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:58:55,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:58:55,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:58:55,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,830 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,842 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 20:58:55,842 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,854 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,857 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:58:55,858 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:58:55,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:58:55,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:58:55,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (1/1) ... [2024-10-14 20:58:55,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:58:55,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:55,888 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) [2024-10-14 20:58:55,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:58:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:58:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:58:55,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:58:55,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:58:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:58:55,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:58:55,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:58:55,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:58:55,980 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:58:55,981 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:58:56,425 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-10-14 20:58:56,426 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:58:56,462 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:58:56,462 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:58:56,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:58:56 BoogieIcfgContainer [2024-10-14 20:58:56,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:58:56,479 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:58:56,480 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:58:56,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:58:56,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:58:55" (1/3) ... [2024-10-14 20:58:56,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ca8ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:58:56, skipping insertion in model container [2024-10-14 20:58:56,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:58:55" (2/3) ... [2024-10-14 20:58:56,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59ca8ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:58:56, skipping insertion in model container [2024-10-14 20:58:56,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:58:56" (3/3) ... [2024-10-14 20:58:56,490 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound50.c [2024-10-14 20:58:56,508 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:58:56,508 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-14 20:58:56,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:58:56,600 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;@2011a5c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:58:56,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-10-14 20:58:56,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 99 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:58:56,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 20:58:56,612 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:56,613 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:56,613 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:58:56,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:56,618 INFO L85 PathProgramCache]: Analyzing trace with hash -639812028, now seen corresponding path program 1 times [2024-10-14 20:58:56,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:56,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413579007] [2024-10-14 20:58:56,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:56,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:56,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:58:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:56,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:58:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:56,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:58:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:56,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:58:56,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:56,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413579007] [2024-10-14 20:58:56,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413579007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:56,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:56,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:58:56,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320145507] [2024-10-14 20:58:56,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:56,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:58:56,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:56,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:58:56,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:58:56,801 INFO L87 Difference]: Start difference. First operand has 108 states, 57 states have (on average 1.8771929824561404) internal successors, (107), 99 states have internal predecessors, (107), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:58:56,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:56,830 INFO L93 Difference]: Finished difference Result 214 states and 241 transitions. [2024-10-14 20:58:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:58:56,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-10-14 20:58:56,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:56,841 INFO L225 Difference]: With dead ends: 214 [2024-10-14 20:58:56,841 INFO L226 Difference]: Without dead ends: 105 [2024-10-14 20:58:56,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:58:56,847 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:56,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:58:56,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-10-14 20:58:56,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-10-14 20:58:56,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 97 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:58:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2024-10-14 20:58:56,885 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 20 [2024-10-14 20:58:56,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:56,885 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2024-10-14 20:58:56,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 20:58:56,886 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2024-10-14 20:58:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 20:58:56,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:56,888 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:56,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:58:56,889 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:58:56,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1469837050, now seen corresponding path program 1 times [2024-10-14 20:58:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452334058] [2024-10-14 20:58:56,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:56,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:56,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1286960554] [2024-10-14 20:58:56,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:56,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:56,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:56,925 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) [2024-10-14 20:58:56,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:58:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:56,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-14 20:58:56,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:58:57,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:58:57,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:57,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452334058] [2024-10-14 20:58:57,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:57,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286960554] [2024-10-14 20:58:57,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286960554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:57,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:57,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 20:58:57,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171813596] [2024-10-14 20:58:57,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:57,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:58:57,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:57,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:58:57,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:58:57,141 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:58:57,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:57,537 INFO L93 Difference]: Finished difference Result 141 states and 167 transitions. [2024-10-14 20:58:57,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:58:57,537 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 20 [2024-10-14 20:58:57,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:57,539 INFO L225 Difference]: With dead ends: 141 [2024-10-14 20:58:57,539 INFO L226 Difference]: Without dead ends: 130 [2024-10-14 20:58:57,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:58:57,541 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 154 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:57,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 222 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:58:57,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-10-14 20:58:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 125. [2024-10-14 20:58:57,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 78 states have (on average 1.6538461538461537) internal successors, (129), 115 states have internal predecessors, (129), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-14 20:58:57,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2024-10-14 20:58:57,558 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 20 [2024-10-14 20:58:57,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:57,560 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2024-10-14 20:58:57,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:58:57,560 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2024-10-14 20:58:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 20:58:57,561 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:57,561 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:57,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:58:57,761 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 [2024-10-14 20:58:57,762 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:58:57,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:57,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1679691756, now seen corresponding path program 1 times [2024-10-14 20:58:57,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:57,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859588835] [2024-10-14 20:58:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:57,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:57,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530377441] [2024-10-14 20:58:57,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:57,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:57,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:57,791 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) [2024-10-14 20:58:57,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:58:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:57,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 20:58:57,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:58:58,034 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:58:58,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:58,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859588835] [2024-10-14 20:58:58,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:58,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530377441] [2024-10-14 20:58:58,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530377441] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:58,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:58,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 20:58:58,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346974086] [2024-10-14 20:58:58,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:58,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:58:58,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:58,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:58:58,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:58:58,041 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:58:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:58,448 INFO L93 Difference]: Finished difference Result 171 states and 207 transitions. [2024-10-14 20:58:58,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:58:58,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-10-14 20:58:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:58,449 INFO L225 Difference]: With dead ends: 171 [2024-10-14 20:58:58,449 INFO L226 Difference]: Without dead ends: 155 [2024-10-14 20:58:58,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:58:58,451 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 296 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:58,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 200 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:58:58,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-14 20:58:58,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2024-10-14 20:58:58,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.6153846153846154) internal successors, (168), 141 states have internal predecessors, (168), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:58:58,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 184 transitions. [2024-10-14 20:58:58,476 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 184 transitions. Word has length 21 [2024-10-14 20:58:58,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:58,476 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 184 transitions. [2024-10-14 20:58:58,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:58:58,476 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 184 transitions. [2024-10-14 20:58:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-14 20:58:58,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:58,477 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:58,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:58:58,677 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,SelfDestructingSolverStorable2 [2024-10-14 20:58:58,678 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:58:58,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:58,679 INFO L85 PathProgramCache]: Analyzing trace with hash 530836936, now seen corresponding path program 1 times [2024-10-14 20:58:58,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:58,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430081662] [2024-10-14 20:58:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:58,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:58,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781708675] [2024-10-14 20:58:58,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:58,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:58,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:58,710 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) [2024-10-14 20:58:58,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:58:58,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:58,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 20:58:58,755 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:58,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:58:58,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:58:58,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430081662] [2024-10-14 20:58:58,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:58,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781708675] [2024-10-14 20:58:58,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781708675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:58,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:58,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 20:58:58,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116439239] [2024-10-14 20:58:58,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:58,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:58:58,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:58,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:58:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:58:58,875 INFO L87 Difference]: Start difference. First operand 152 states and 184 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:58:59,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:58:59,285 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2024-10-14 20:58:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:58:59,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2024-10-14 20:58:59,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:58:59,288 INFO L225 Difference]: With dead ends: 160 [2024-10-14 20:58:59,288 INFO L226 Difference]: Without dead ends: 159 [2024-10-14 20:58:59,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:58:59,289 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 372 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:58:59,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 228 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:58:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-14 20:58:59,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2024-10-14 20:58:59,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.6057692307692308) internal successors, (167), 141 states have internal predecessors, (167), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:58:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2024-10-14 20:58:59,315 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 22 [2024-10-14 20:58:59,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:58:59,316 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2024-10-14 20:58:59,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:58:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2024-10-14 20:58:59,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 20:58:59,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:58:59,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:58:59,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:58:59,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:59,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:58:59,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:58:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash -723924114, now seen corresponding path program 1 times [2024-10-14 20:58:59,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:58:59,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300281104] [2024-10-14 20:58:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:59,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:58:59,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:58:59,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419139580] [2024-10-14 20:58:59,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:58:59,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:58:59,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:58:59,553 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) [2024-10-14 20:58:59,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:58:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:58:59,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-14 20:58:59,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:58:59,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:58:59,765 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:58:59,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:58:59,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300281104] [2024-10-14 20:58:59,766 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:58:59,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419139580] [2024-10-14 20:58:59,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419139580] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:58:59,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:58:59,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 20:58:59,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554396590] [2024-10-14 20:58:59,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:58:59,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:58:59,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:58:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:58:59,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:58:59,768 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:59:00,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:00,096 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2024-10-14 20:59:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:59:00,096 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2024-10-14 20:59:00,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:00,097 INFO L225 Difference]: With dead ends: 160 [2024-10-14 20:59:00,098 INFO L226 Difference]: Without dead ends: 159 [2024-10-14 20:59:00,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:59:00,099 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 251 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:00,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 231 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:59:00,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-14 20:59:00,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2024-10-14 20:59:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 104 states have (on average 1.5961538461538463) internal successors, (166), 141 states have internal predecessors, (166), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 20:59:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 182 transitions. [2024-10-14 20:59:00,115 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 182 transitions. Word has length 23 [2024-10-14 20:59:00,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:00,115 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 182 transitions. [2024-10-14 20:59:00,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:59:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 182 transitions. [2024-10-14 20:59:00,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 20:59:00,116 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:00,116 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:00,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 20:59:00,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:00,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:00,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:00,321 INFO L85 PathProgramCache]: Analyzing trace with hash -966810998, now seen corresponding path program 1 times [2024-10-14 20:59:00,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:00,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357478989] [2024-10-14 20:59:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:00,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:00,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:00,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:00,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:00,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:00,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357478989] [2024-10-14 20:59:00,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357478989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:00,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:00,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:00,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491288559] [2024-10-14 20:59:00,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:00,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:00,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:00,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:00,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:00,459 INFO L87 Difference]: Start difference. First operand 152 states and 182 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-10-14 20:59:01,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:01,549 INFO L93 Difference]: Finished difference Result 245 states and 291 transitions. [2024-10-14 20:59:01,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:01,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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 [2024-10-14 20:59:01,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:01,550 INFO L225 Difference]: With dead ends: 245 [2024-10-14 20:59:01,550 INFO L226 Difference]: Without dead ends: 244 [2024-10-14 20:59:01,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:01,551 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 70 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:01,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 178 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 20:59:01,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-14 20:59:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 173. [2024-10-14 20:59:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 124 states have (on average 1.596774193548387) internal successors, (198), 161 states have internal predecessors, (198), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:59:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 216 transitions. [2024-10-14 20:59:01,567 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 216 transitions. Word has length 24 [2024-10-14 20:59:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:01,568 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 216 transitions. [2024-10-14 20:59:01,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2024-10-14 20:59:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 216 transitions. [2024-10-14 20:59:01,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 20:59:01,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:01,569 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:01,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 20:59:01,569 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:01,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:01,570 INFO L85 PathProgramCache]: Analyzing trace with hash 93630192, now seen corresponding path program 1 times [2024-10-14 20:59:01,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:01,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456691621] [2024-10-14 20:59:01,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:01,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:01,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:01,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:01,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:01,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:01,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456691621] [2024-10-14 20:59:01,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456691621] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:01,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:01,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:01,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493717463] [2024-10-14 20:59:01,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:01,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:01,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:01,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:01,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:01,777 INFO L87 Difference]: Start difference. First operand 173 states and 216 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2024-10-14 20:59:03,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:03,750 INFO L93 Difference]: Finished difference Result 245 states and 289 transitions. [2024-10-14 20:59:03,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:03,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 [2024-10-14 20:59:03,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:03,752 INFO L225 Difference]: With dead ends: 245 [2024-10-14 20:59:03,752 INFO L226 Difference]: Without dead ends: 244 [2024-10-14 20:59:03,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:03,753 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 69 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:03,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 172 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-14 20:59:03,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-10-14 20:59:03,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 173. [2024-10-14 20:59:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 124 states have (on average 1.5806451612903225) internal successors, (196), 161 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:59:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 214 transitions. [2024-10-14 20:59:03,765 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 214 transitions. Word has length 25 [2024-10-14 20:59:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:03,766 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 214 transitions. [2024-10-14 20:59:03,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2024-10-14 20:59:03,766 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 214 transitions. [2024-10-14 20:59:03,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-14 20:59:03,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:03,770 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:03,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 20:59:03,771 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:03,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:03,771 INFO L85 PathProgramCache]: Analyzing trace with hash 591387408, now seen corresponding path program 1 times [2024-10-14 20:59:03,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:03,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967929845] [2024-10-14 20:59:03,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:03,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:03,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116224840] [2024-10-14 20:59:03,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:03,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:03,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:03,809 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) [2024-10-14 20:59:03,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:59:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:03,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:59:03,861 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:03,945 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:03,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:03,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:03,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967929845] [2024-10-14 20:59:03,946 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:03,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116224840] [2024-10-14 20:59:03,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116224840] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:03,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:03,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:03,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196867452] [2024-10-14 20:59:03,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:03,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:03,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:03,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:03,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:03,948 INFO L87 Difference]: Start difference. First operand 173 states and 214 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:04,272 INFO L93 Difference]: Finished difference Result 183 states and 222 transitions. [2024-10-14 20:59:04,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:04,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2024-10-14 20:59:04,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:04,274 INFO L225 Difference]: With dead ends: 183 [2024-10-14 20:59:04,275 INFO L226 Difference]: Without dead ends: 180 [2024-10-14 20:59:04,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:59:04,276 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 151 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:04,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 118 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:59:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-10-14 20:59:04,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 177. [2024-10-14 20:59:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 128 states have (on average 1.5546875) internal successors, (199), 165 states have internal predecessors, (199), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:59:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 217 transitions. [2024-10-14 20:59:04,286 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 217 transitions. Word has length 38 [2024-10-14 20:59:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:04,286 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 217 transitions. [2024-10-14 20:59:04,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 217 transitions. [2024-10-14 20:59:04,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:59:04,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:04,290 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:04,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:59:04,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:04,490 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:04,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1166531614, now seen corresponding path program 1 times [2024-10-14 20:59:04,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:04,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776147094] [2024-10-14 20:59:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:04,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:04,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2095118825] [2024-10-14 20:59:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:04,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:04,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:04,518 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) [2024-10-14 20:59:04,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:59:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:04,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:59:04,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:04,643 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:04,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:04,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776147094] [2024-10-14 20:59:04,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:04,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095118825] [2024-10-14 20:59:04,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095118825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:04,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:04,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:04,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528682858] [2024-10-14 20:59:04,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:04,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:04,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:04,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:04,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:04,646 INFO L87 Difference]: Start difference. First operand 177 states and 217 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:04,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:04,937 INFO L93 Difference]: Finished difference Result 226 states and 285 transitions. [2024-10-14 20:59:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:04,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-10-14 20:59:04,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:04,939 INFO L225 Difference]: With dead ends: 226 [2024-10-14 20:59:04,939 INFO L226 Difference]: Without dead ends: 220 [2024-10-14 20:59:04,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:59:04,940 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 145 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:04,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 122 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:59:04,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-14 20:59:04,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 205. [2024-10-14 20:59:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 155 states have (on average 1.5741935483870968) internal successors, (244), 192 states have internal predecessors, (244), 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) [2024-10-14 20:59:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 264 transitions. [2024-10-14 20:59:04,954 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 264 transitions. Word has length 39 [2024-10-14 20:59:04,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:04,957 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 264 transitions. [2024-10-14 20:59:04,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 264 transitions. [2024-10-14 20:59:04,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:59:04,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:04,958 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:04,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 20:59:05,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:05,161 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:05,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:05,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1153140560, now seen corresponding path program 1 times [2024-10-14 20:59:05,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:05,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505640990] [2024-10-14 20:59:05,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:05,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:05,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660145897] [2024-10-14 20:59:05,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:05,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:05,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:05,185 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) [2024-10-14 20:59:05,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:59:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:05,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:59:05,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:05,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:05,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:05,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:05,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505640990] [2024-10-14 20:59:05,302 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:05,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660145897] [2024-10-14 20:59:05,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660145897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:05,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:05,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:05,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395205655] [2024-10-14 20:59:05,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:05,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:05,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:05,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:05,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:05,306 INFO L87 Difference]: Start difference. First operand 205 states and 264 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:05,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:05,623 INFO L93 Difference]: Finished difference Result 266 states and 356 transitions. [2024-10-14 20:59:05,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:05,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-10-14 20:59:05,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:05,626 INFO L225 Difference]: With dead ends: 266 [2024-10-14 20:59:05,627 INFO L226 Difference]: Without dead ends: 260 [2024-10-14 20:59:05,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:59:05,628 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 188 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:05,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 99 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:59:05,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-10-14 20:59:05,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 240. [2024-10-14 20:59:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 189 states have (on average 1.6243386243386244) internal successors, (307), 226 states have internal predecessors, (307), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 329 transitions. [2024-10-14 20:59:05,644 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 329 transitions. Word has length 39 [2024-10-14 20:59:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:05,645 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 329 transitions. [2024-10-14 20:59:05,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:05,646 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 329 transitions. [2024-10-14 20:59:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 20:59:05,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:05,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:05,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 20:59:05,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:05,847 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:05,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:05,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1802741779, now seen corresponding path program 1 times [2024-10-14 20:59:05,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:05,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808540636] [2024-10-14 20:59:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:05,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:05,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [476592646] [2024-10-14 20:59:05,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:05,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:05,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:05,870 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) [2024-10-14 20:59:05,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:59:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:05,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:59:05,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:06,018 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:06,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:06,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:06,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808540636] [2024-10-14 20:59:06,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:06,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476592646] [2024-10-14 20:59:06,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476592646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:06,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:06,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638464089] [2024-10-14 20:59:06,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:06,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:06,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:06,021 INFO L87 Difference]: Start difference. First operand 240 states and 329 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:06,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:06,377 INFO L93 Difference]: Finished difference Result 252 states and 336 transitions. [2024-10-14 20:59:06,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:06,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-14 20:59:06,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:06,379 INFO L225 Difference]: With dead ends: 252 [2024-10-14 20:59:06,379 INFO L226 Difference]: Without dead ends: 248 [2024-10-14 20:59:06,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:59:06,380 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 194 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:06,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 84 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:59:06,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-14 20:59:06,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 240. [2024-10-14 20:59:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 189 states have (on average 1.597883597883598) internal successors, (302), 226 states have internal predecessors, (302), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:06,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 324 transitions. [2024-10-14 20:59:06,393 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 324 transitions. Word has length 40 [2024-10-14 20:59:06,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:06,394 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 324 transitions. [2024-10-14 20:59:06,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:06,394 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 324 transitions. [2024-10-14 20:59:06,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 20:59:06,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:06,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:06,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:59:06,602 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,SelfDestructingSolverStorable10 [2024-10-14 20:59:06,603 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:06,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:06,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1387619090, now seen corresponding path program 1 times [2024-10-14 20:59:06,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:06,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959491774] [2024-10-14 20:59:06,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:06,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:06,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:06,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:06,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:06,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:06,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:06,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959491774] [2024-10-14 20:59:06,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959491774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:06,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:06,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:06,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356474018] [2024-10-14 20:59:06,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:06,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:06,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:06,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:06,693 INFO L87 Difference]: Start difference. First operand 240 states and 324 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:07,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:07,232 INFO L93 Difference]: Finished difference Result 323 states and 416 transitions. [2024-10-14 20:59:07,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:07,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-14 20:59:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:07,234 INFO L225 Difference]: With dead ends: 323 [2024-10-14 20:59:07,234 INFO L226 Difference]: Without dead ends: 322 [2024-10-14 20:59:07,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:07,234 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 62 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:07,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 210 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:07,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-14 20:59:07,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 250. [2024-10-14 20:59:07,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 199 states have (on average 1.592964824120603) internal successors, (317), 236 states have internal predecessors, (317), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:07,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 339 transitions. [2024-10-14 20:59:07,247 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 339 transitions. Word has length 40 [2024-10-14 20:59:07,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:07,248 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 339 transitions. [2024-10-14 20:59:07,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 339 transitions. [2024-10-14 20:59:07,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:59:07,249 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:07,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:07,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 20:59:07,249 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:07,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:07,251 INFO L85 PathProgramCache]: Analyzing trace with hash 464588800, now seen corresponding path program 1 times [2024-10-14 20:59:07,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:07,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044741802] [2024-10-14 20:59:07,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:07,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:07,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:07,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:07,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:07,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:07,416 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:07,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:07,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044741802] [2024-10-14 20:59:07,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044741802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:07,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:07,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:59:07,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522974115] [2024-10-14 20:59:07,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:07,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:59:07,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:07,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:59:07,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:59:07,419 INFO L87 Difference]: Start difference. First operand 250 states and 339 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:08,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:08,018 INFO L93 Difference]: Finished difference Result 352 states and 500 transitions. [2024-10-14 20:59:08,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:59:08,019 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 41 [2024-10-14 20:59:08,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:08,021 INFO L225 Difference]: With dead ends: 352 [2024-10-14 20:59:08,021 INFO L226 Difference]: Without dead ends: 350 [2024-10-14 20:59:08,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:59:08,022 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 480 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:08,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 89 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:08,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-10-14 20:59:08,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 256. [2024-10-14 20:59:08,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 205 states have (on average 1.5804878048780489) internal successors, (324), 242 states have internal predecessors, (324), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 346 transitions. [2024-10-14 20:59:08,033 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 346 transitions. Word has length 41 [2024-10-14 20:59:08,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:08,034 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 346 transitions. [2024-10-14 20:59:08,034 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), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:08,034 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 346 transitions. [2024-10-14 20:59:08,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:59:08,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:08,035 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:08,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 20:59:08,035 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:08,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash 50420416, now seen corresponding path program 1 times [2024-10-14 20:59:08,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:08,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595445589] [2024-10-14 20:59:08,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:08,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:08,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:08,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:08,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595445589] [2024-10-14 20:59:08,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595445589] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:08,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:08,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:08,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666618543] [2024-10-14 20:59:08,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:08,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:08,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:08,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:08,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:08,121 INFO L87 Difference]: Start difference. First operand 256 states and 346 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:08,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:08,606 INFO L93 Difference]: Finished difference Result 323 states and 412 transitions. [2024-10-14 20:59:08,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:08,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-14 20:59:08,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:08,608 INFO L225 Difference]: With dead ends: 323 [2024-10-14 20:59:08,608 INFO L226 Difference]: Without dead ends: 322 [2024-10-14 20:59:08,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:08,609 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 61 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:08,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 213 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:08,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-14 20:59:08,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 266. [2024-10-14 20:59:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 215 states have (on average 1.5767441860465117) internal successors, (339), 252 states have internal predecessors, (339), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:08,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 361 transitions. [2024-10-14 20:59:08,621 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 361 transitions. Word has length 41 [2024-10-14 20:59:08,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:08,622 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 361 transitions. [2024-10-14 20:59:08,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:08,622 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 361 transitions. [2024-10-14 20:59:08,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:59:08,623 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:08,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:08,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 20:59:08,623 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:08,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:08,624 INFO L85 PathProgramCache]: Analyzing trace with hash 66518930, now seen corresponding path program 1 times [2024-10-14 20:59:08,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:08,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038873582] [2024-10-14 20:59:08,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:08,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:08,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:08,731 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:08,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:08,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038873582] [2024-10-14 20:59:08,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038873582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:08,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:08,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:08,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439229227] [2024-10-14 20:59:08,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:08,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:08,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:08,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:08,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:08,733 INFO L87 Difference]: Start difference. First operand 266 states and 361 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:09,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:09,657 INFO L93 Difference]: Finished difference Result 323 states and 410 transitions. [2024-10-14 20:59:09,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:09,657 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-10-14 20:59:09,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:09,659 INFO L225 Difference]: With dead ends: 323 [2024-10-14 20:59:09,659 INFO L226 Difference]: Without dead ends: 322 [2024-10-14 20:59:09,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:09,659 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 60 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:09,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 216 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 20:59:09,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-14 20:59:09,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 268. [2024-10-14 20:59:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 217 states have (on average 1.5714285714285714) internal successors, (341), 254 states have internal predecessors, (341), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 363 transitions. [2024-10-14 20:59:09,674 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 363 transitions. Word has length 41 [2024-10-14 20:59:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:09,674 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 363 transitions. [2024-10-14 20:59:09,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:09,674 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 363 transitions. [2024-10-14 20:59:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 20:59:09,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:09,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:09,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 20:59:09,675 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:09,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1517351043, now seen corresponding path program 1 times [2024-10-14 20:59:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:09,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165402724] [2024-10-14 20:59:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:09,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:09,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:09,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:09,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:09,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:09,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165402724] [2024-10-14 20:59:09,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165402724] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:09,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:09,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:59:09,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977859797] [2024-10-14 20:59:09,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:09,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:59:09,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:09,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:59:09,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:59:09,787 INFO L87 Difference]: Start difference. First operand 268 states and 363 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:10,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:10,589 INFO L93 Difference]: Finished difference Result 275 states and 370 transitions. [2024-10-14 20:59:10,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:59:10,590 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2024-10-14 20:59:10,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:10,592 INFO L225 Difference]: With dead ends: 275 [2024-10-14 20:59:10,592 INFO L226 Difference]: Without dead ends: 273 [2024-10-14 20:59:10,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:59:10,593 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 386 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:10,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 115 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 20:59:10,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-10-14 20:59:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 268. [2024-10-14 20:59:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 217 states have (on average 1.5576036866359446) internal successors, (338), 254 states have internal predecessors, (338), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:10,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 360 transitions. [2024-10-14 20:59:10,605 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 360 transitions. Word has length 42 [2024-10-14 20:59:10,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:10,606 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 360 transitions. [2024-10-14 20:59:10,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:10,606 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 360 transitions. [2024-10-14 20:59:10,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 20:59:10,606 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:10,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:10,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 20:59:10,607 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:10,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1563033013, now seen corresponding path program 1 times [2024-10-14 20:59:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:10,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520443017] [2024-10-14 20:59:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:10,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:10,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:10,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:10,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:10,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:10,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:10,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520443017] [2024-10-14 20:59:10,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520443017] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:10,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:10,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:10,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928434449] [2024-10-14 20:59:10,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:10,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:10,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:10,735 INFO L87 Difference]: Start difference. First operand 268 states and 360 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:11,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:11,771 INFO L93 Difference]: Finished difference Result 323 states and 404 transitions. [2024-10-14 20:59:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:11,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2024-10-14 20:59:11,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:11,773 INFO L225 Difference]: With dead ends: 323 [2024-10-14 20:59:11,773 INFO L226 Difference]: Without dead ends: 322 [2024-10-14 20:59:11,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:11,774 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 59 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:11,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 217 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-14 20:59:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-14 20:59:11,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 270. [2024-10-14 20:59:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 219 states have (on average 1.552511415525114) internal successors, (340), 256 states have internal predecessors, (340), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:11,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 362 transitions. [2024-10-14 20:59:11,788 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 362 transitions. Word has length 42 [2024-10-14 20:59:11,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:11,788 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 362 transitions. [2024-10-14 20:59:11,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 362 transitions. [2024-10-14 20:59:11,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 20:59:11,789 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:11,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:11,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 20:59:11,790 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:11,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash 352887974, now seen corresponding path program 1 times [2024-10-14 20:59:11,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375766109] [2024-10-14 20:59:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:11,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476197499] [2024-10-14 20:59:11,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:11,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:11,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:11,827 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) [2024-10-14 20:59:11,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:59:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:11,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-10-14 20:59:11,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:12,205 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:12,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:14,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:14,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375766109] [2024-10-14 20:59:14,724 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:14,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476197499] [2024-10-14 20:59:14,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476197499] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:14,724 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:14,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-14 20:59:14,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994779956] [2024-10-14 20:59:14,725 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:14,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:59:14,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:14,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:59:14,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:59:14,726 INFO L87 Difference]: Start difference. First operand 270 states and 362 transitions. Second operand has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:15,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:15,383 INFO L93 Difference]: Finished difference Result 339 states and 460 transitions. [2024-10-14 20:59:15,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:59:15,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 42 [2024-10-14 20:59:15,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:15,386 INFO L225 Difference]: With dead ends: 339 [2024-10-14 20:59:15,386 INFO L226 Difference]: Without dead ends: 330 [2024-10-14 20:59:15,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-10-14 20:59:15,386 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 300 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:15,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 279 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:59:15,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-10-14 20:59:15,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 307. [2024-10-14 20:59:15,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 254 states have (on average 1.5039370078740157) internal successors, (382), 291 states have internal predecessors, (382), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 20:59:15,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 408 transitions. [2024-10-14 20:59:15,400 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 408 transitions. Word has length 42 [2024-10-14 20:59:15,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:15,400 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 408 transitions. [2024-10-14 20:59:15,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 408 transitions. [2024-10-14 20:59:15,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:59:15,401 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:15,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:15,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:59:15,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 20:59:15,606 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:15,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash -499816236, now seen corresponding path program 1 times [2024-10-14 20:59:15,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:15,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89728296] [2024-10-14 20:59:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:15,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [73896009] [2024-10-14 20:59:15,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:15,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:15,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:15,624 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) [2024-10-14 20:59:15,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:59:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:15,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:59:15,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:15,763 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:15,763 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:15,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:15,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89728296] [2024-10-14 20:59:15,764 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:15,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73896009] [2024-10-14 20:59:15,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73896009] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:15,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:15,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 20:59:15,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620906271] [2024-10-14 20:59:15,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:15,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:59:15,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:15,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:59:15,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:59:15,766 INFO L87 Difference]: Start difference. First operand 307 states and 408 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:16,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:16,302 INFO L93 Difference]: Finished difference Result 315 states and 411 transitions. [2024-10-14 20:59:16,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:59:16,303 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-14 20:59:16,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:16,304 INFO L225 Difference]: With dead ends: 315 [2024-10-14 20:59:16,304 INFO L226 Difference]: Without dead ends: 305 [2024-10-14 20:59:16,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:59:16,305 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 158 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:16,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 303 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:16,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-10-14 20:59:16,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 301. [2024-10-14 20:59:16,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 250 states have (on average 1.484) internal successors, (371), 286 states have internal predecessors, (371), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:59:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 395 transitions. [2024-10-14 20:59:16,317 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 395 transitions. Word has length 43 [2024-10-14 20:59:16,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:16,317 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 395 transitions. [2024-10-14 20:59:16,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:16,318 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 395 transitions. [2024-10-14 20:59:16,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:59:16,318 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:16,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:16,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 20:59:16,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:16,523 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:16,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:16,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1945374644, now seen corresponding path program 1 times [2024-10-14 20:59:16,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:16,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565437729] [2024-10-14 20:59:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:16,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:16,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1900533749] [2024-10-14 20:59:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:16,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:16,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:16,539 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) [2024-10-14 20:59:16,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:59:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:16,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 20:59:16,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:17,205 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:17,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:17,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565437729] [2024-10-14 20:59:17,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:17,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900533749] [2024-10-14 20:59:17,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900533749] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:17,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:17,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-14 20:59:17,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439392124] [2024-10-14 20:59:17,956 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:17,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:59:17,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:17,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:59:17,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:59:17,957 INFO L87 Difference]: Start difference. First operand 301 states and 395 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:23,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-14 20:59:23,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:23,758 INFO L93 Difference]: Finished difference Result 456 states and 620 transitions. [2024-10-14 20:59:23,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 20:59:23,758 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-10-14 20:59:23,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:23,761 INFO L225 Difference]: With dead ends: 456 [2024-10-14 20:59:23,761 INFO L226 Difference]: Without dead ends: 416 [2024-10-14 20:59:23,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2024-10-14 20:59:23,762 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 242 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 45 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:23,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 227 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 642 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-10-14 20:59:23,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-10-14 20:59:23,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 285. [2024-10-14 20:59:23,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 236 states have (on average 1.423728813559322) internal successors, (336), 272 states have internal predecessors, (336), 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) [2024-10-14 20:59:23,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 356 transitions. [2024-10-14 20:59:23,779 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 356 transitions. Word has length 43 [2024-10-14 20:59:23,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:23,780 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 356 transitions. [2024-10-14 20:59:23,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:23,780 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 356 transitions. [2024-10-14 20:59:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 20:59:23,780 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:23,780 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:23,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 20:59:23,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:23,985 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:23,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:23,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1125736252, now seen corresponding path program 1 times [2024-10-14 20:59:23,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:23,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553417502] [2024-10-14 20:59:23,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:23,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40772334] [2024-10-14 20:59:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:24,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:24,010 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) [2024-10-14 20:59:24,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:59:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:24,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:59:24,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:24,233 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:24,233 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:24,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:24,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553417502] [2024-10-14 20:59:24,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:24,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40772334] [2024-10-14 20:59:24,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40772334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:24,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:24,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:59:24,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548895092] [2024-10-14 20:59:24,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:24,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:59:24,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:24,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:59:24,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:59:24,236 INFO L87 Difference]: Start difference. First operand 285 states and 356 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:24,826 INFO L93 Difference]: Finished difference Result 373 states and 485 transitions. [2024-10-14 20:59:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:59:24,827 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 45 [2024-10-14 20:59:24,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:24,828 INFO L225 Difference]: With dead ends: 373 [2024-10-14 20:59:24,828 INFO L226 Difference]: Without dead ends: 366 [2024-10-14 20:59:24,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:59:24,829 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 400 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:24,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 110 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-10-14 20:59:24,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 320. [2024-10-14 20:59:24,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 270 states have (on average 1.4333333333333333) internal successors, (387), 306 states have internal predecessors, (387), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:24,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 409 transitions. [2024-10-14 20:59:24,844 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 409 transitions. Word has length 45 [2024-10-14 20:59:24,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:24,844 INFO L471 AbstractCegarLoop]: Abstraction has 320 states and 409 transitions. [2024-10-14 20:59:24,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:24,845 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 409 transitions. [2024-10-14 20:59:24,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-14 20:59:24,845 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:24,845 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-14 20:59:24,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 20:59:25,049 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,SelfDestructingSolverStorable20 [2024-10-14 20:59:25,050 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:25,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:25,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1194257458, now seen corresponding path program 1 times [2024-10-14 20:59:25,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:25,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644853930] [2024-10-14 20:59:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:25,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:25,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576137053] [2024-10-14 20:59:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:25,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:25,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:25,065 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) [2024-10-14 20:59:25,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:59:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:25,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-10-14 20:59:25,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:25,587 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:25,588 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:27,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:27,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644853930] [2024-10-14 20:59:27,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:27,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576137053] [2024-10-14 20:59:27,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576137053] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:27,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:27,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-10-14 20:59:27,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772061090] [2024-10-14 20:59:27,555 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:27,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:59:27,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:27,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:59:27,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:59:27,557 INFO L87 Difference]: Start difference. First operand 320 states and 409 transitions. Second operand has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:30,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:30,692 INFO L93 Difference]: Finished difference Result 364 states and 464 transitions. [2024-10-14 20:59:30,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:59:30,693 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 45 [2024-10-14 20:59:30,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:30,694 INFO L225 Difference]: With dead ends: 364 [2024-10-14 20:59:30,695 INFO L226 Difference]: Without dead ends: 363 [2024-10-14 20:59:30,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-10-14 20:59:30,695 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 193 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:30,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 289 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 20:59:30,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-10-14 20:59:30,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 330. [2024-10-14 20:59:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 280 states have (on average 1.4142857142857144) internal successors, (396), 316 states have internal predecessors, (396), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:30,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 418 transitions. [2024-10-14 20:59:30,711 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 418 transitions. Word has length 45 [2024-10-14 20:59:30,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:30,711 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 418 transitions. [2024-10-14 20:59:30,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:30,712 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 418 transitions. [2024-10-14 20:59:30,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 20:59:30,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:30,713 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:30,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:59:30,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-14 20:59:30,917 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:30,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:30,917 INFO L85 PathProgramCache]: Analyzing trace with hash -538085305, now seen corresponding path program 1 times [2024-10-14 20:59:30,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:30,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575054535] [2024-10-14 20:59:30,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:30,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:30,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382982059] [2024-10-14 20:59:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:30,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:30,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:30,936 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) [2024-10-14 20:59:30,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:59:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:30,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:59:30,979 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:31,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:31,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:31,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575054535] [2024-10-14 20:59:31,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:31,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382982059] [2024-10-14 20:59:31,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382982059] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:31,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:31,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:59:31,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802999423] [2024-10-14 20:59:31,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:31,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:59:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:31,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:59:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:59:31,141 INFO L87 Difference]: Start difference. First operand 330 states and 418 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:31,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:31,626 INFO L93 Difference]: Finished difference Result 356 states and 451 transitions. [2024-10-14 20:59:31,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:59:31,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-10-14 20:59:31,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:31,628 INFO L225 Difference]: With dead ends: 356 [2024-10-14 20:59:31,628 INFO L226 Difference]: Without dead ends: 355 [2024-10-14 20:59:31,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:59:31,629 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 392 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:31,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 95 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:59:31,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-10-14 20:59:31,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 330. [2024-10-14 20:59:31,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 280 states have (on average 1.4071428571428573) internal successors, (394), 316 states have internal predecessors, (394), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:31,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 416 transitions. [2024-10-14 20:59:31,647 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 416 transitions. Word has length 46 [2024-10-14 20:59:31,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:31,648 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 416 transitions. [2024-10-14 20:59:31,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:31,648 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 416 transitions. [2024-10-14 20:59:31,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 20:59:31,648 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:31,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:31,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-14 20:59:31,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:31,849 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:31,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:31,849 INFO L85 PathProgramCache]: Analyzing trace with hash 499224870, now seen corresponding path program 1 times [2024-10-14 20:59:31,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:31,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510495770] [2024-10-14 20:59:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:31,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:31,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:31,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:31,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:31,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:31,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:31,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510495770] [2024-10-14 20:59:31,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510495770] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:31,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:31,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:31,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737080292] [2024-10-14 20:59:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:31,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:31,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:31,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:31,913 INFO L87 Difference]: Start difference. First operand 330 states and 416 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:32,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:32,606 INFO L93 Difference]: Finished difference Result 354 states and 437 transitions. [2024-10-14 20:59:32,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:32,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-10-14 20:59:32,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:32,608 INFO L225 Difference]: With dead ends: 354 [2024-10-14 20:59:32,608 INFO L226 Difference]: Without dead ends: 353 [2024-10-14 20:59:32,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:32,609 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 31 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:32,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 207 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:59:32,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-10-14 20:59:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 341. [2024-10-14 20:59:32,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 291 states have (on average 1.4123711340206186) internal successors, (411), 327 states have internal predecessors, (411), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-10-14 20:59:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 433 transitions. [2024-10-14 20:59:32,623 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 433 transitions. Word has length 47 [2024-10-14 20:59:32,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:32,623 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 433 transitions. [2024-10-14 20:59:32,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:32,623 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 433 transitions. [2024-10-14 20:59:32,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 20:59:32,624 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:32,624 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-14 20:59:32,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 20:59:32,624 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:32,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:32,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2063309992, now seen corresponding path program 1 times [2024-10-14 20:59:32,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:32,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755605293] [2024-10-14 20:59:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:32,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:32,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426223720] [2024-10-14 20:59:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:32,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:32,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:32,641 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) [2024-10-14 20:59:32,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:59:32,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:32,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:59:32,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:32,860 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:59:32,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:32,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755605293] [2024-10-14 20:59:32,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:32,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426223720] [2024-10-14 20:59:32,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426223720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:32,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:32,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 20:59:32,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921579779] [2024-10-14 20:59:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:32,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:59:32,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:32,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:59:32,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:59:32,862 INFO L87 Difference]: Start difference. First operand 341 states and 433 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:33,408 INFO L93 Difference]: Finished difference Result 373 states and 471 transitions. [2024-10-14 20:59:33,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:59:33,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-10-14 20:59:33,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:33,410 INFO L225 Difference]: With dead ends: 373 [2024-10-14 20:59:33,411 INFO L226 Difference]: Without dead ends: 371 [2024-10-14 20:59:33,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:59:33,411 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 156 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:33,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 273 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:33,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-10-14 20:59:33,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 360. [2024-10-14 20:59:33,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 309 states have (on average 1.401294498381877) internal successors, (433), 345 states have internal predecessors, (433), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:59:33,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 457 transitions. [2024-10-14 20:59:33,428 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 457 transitions. Word has length 47 [2024-10-14 20:59:33,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:33,428 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 457 transitions. [2024-10-14 20:59:33,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:33,428 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 457 transitions. [2024-10-14 20:59:33,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 20:59:33,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:33,429 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:33,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-14 20:59:33,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:33,630 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:33,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:33,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1703898071, now seen corresponding path program 1 times [2024-10-14 20:59:33,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:33,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502461410] [2024-10-14 20:59:33,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:33,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:33,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:59:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:33,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 20:59:33,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:33,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-14 20:59:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:33,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 20:59:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:33,752 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 20:59:33,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:33,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502461410] [2024-10-14 20:59:33,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502461410] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:59:33,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:59:33,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:59:33,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887401944] [2024-10-14 20:59:33,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:59:33,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:59:33,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:33,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:59:33,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:33,755 INFO L87 Difference]: Start difference. First operand 360 states and 457 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:34,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:34,271 INFO L93 Difference]: Finished difference Result 373 states and 459 transitions. [2024-10-14 20:59:34,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:59:34,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2024-10-14 20:59:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:34,273 INFO L225 Difference]: With dead ends: 373 [2024-10-14 20:59:34,273 INFO L226 Difference]: Without dead ends: 372 [2024-10-14 20:59:34,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:59:34,274 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 30 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:34,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 192 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:34,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-10-14 20:59:34,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 361. [2024-10-14 20:59:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 310 states have (on average 1.396774193548387) internal successors, (433), 346 states have internal predecessors, (433), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-14 20:59:34,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 457 transitions. [2024-10-14 20:59:34,293 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 457 transitions. Word has length 48 [2024-10-14 20:59:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:34,294 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 457 transitions. [2024-10-14 20:59:34,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:59:34,294 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 457 transitions. [2024-10-14 20:59:34,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 20:59:34,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:34,295 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-14 20:59:34,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 20:59:34,296 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:34,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1526397755, now seen corresponding path program 1 times [2024-10-14 20:59:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:34,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240602771] [2024-10-14 20:59:34,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:34,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:34,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [32025034] [2024-10-14 20:59:34,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:34,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:34,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:34,311 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) [2024-10-14 20:59:34,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 20:59:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:34,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:59:34,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:34,530 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:34,530 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:35,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:35,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240602771] [2024-10-14 20:59:35,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:35,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32025034] [2024-10-14 20:59:35,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32025034] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:35,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:35,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:59:35,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213758357] [2024-10-14 20:59:35,471 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:35,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:59:35,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:35,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:59:35,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:59:35,472 INFO L87 Difference]: Start difference. First operand 361 states and 457 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:35,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:35,909 INFO L93 Difference]: Finished difference Result 393 states and 495 transitions. [2024-10-14 20:59:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:59:35,910 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2024-10-14 20:59:35,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:35,911 INFO L225 Difference]: With dead ends: 393 [2024-10-14 20:59:35,911 INFO L226 Difference]: Without dead ends: 391 [2024-10-14 20:59:35,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-10-14 20:59:35,912 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 169 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:35,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 276 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:59:35,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2024-10-14 20:59:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 381. [2024-10-14 20:59:35,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 329 states have (on average 1.3890577507598785) internal successors, (457), 365 states have internal predecessors, (457), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 20:59:35,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 483 transitions. [2024-10-14 20:59:35,930 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 483 transitions. Word has length 48 [2024-10-14 20:59:35,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:35,930 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 483 transitions. [2024-10-14 20:59:35,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:35,930 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 483 transitions. [2024-10-14 20:59:35,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 20:59:35,931 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:35,931 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-14 20:59:35,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 20:59:36,135 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,SelfDestructingSolverStorable26 [2024-10-14 20:59:36,135 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:36,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:36,136 INFO L85 PathProgramCache]: Analyzing trace with hash 461899746, now seen corresponding path program 1 times [2024-10-14 20:59:36,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:36,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413247503] [2024-10-14 20:59:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:36,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:36,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023023306] [2024-10-14 20:59:36,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:36,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:36,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:36,155 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) [2024-10-14 20:59:36,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:59:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:36,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-14 20:59:36,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:36,683 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:36,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:37,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:37,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413247503] [2024-10-14 20:59:37,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:37,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023023306] [2024-10-14 20:59:37,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023023306] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:37,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:37,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-14 20:59:37,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325871659] [2024-10-14 20:59:37,408 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:37,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:59:37,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:37,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:59:37,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:59:37,409 INFO L87 Difference]: Start difference. First operand 381 states and 483 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:37,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:37,997 INFO L93 Difference]: Finished difference Result 610 states and 772 transitions. [2024-10-14 20:59:37,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 20:59:37,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2024-10-14 20:59:37,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:37,999 INFO L225 Difference]: With dead ends: 610 [2024-10-14 20:59:37,999 INFO L226 Difference]: Without dead ends: 382 [2024-10-14 20:59:37,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:59:38,000 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 151 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:38,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 249 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:59:38,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-10-14 20:59:38,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 375. [2024-10-14 20:59:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 323 states have (on average 1.3869969040247678) internal successors, (448), 359 states have internal predecessors, (448), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 20:59:38,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 474 transitions. [2024-10-14 20:59:38,018 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 474 transitions. Word has length 48 [2024-10-14 20:59:38,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:38,018 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 474 transitions. [2024-10-14 20:59:38,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:38,018 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 474 transitions. [2024-10-14 20:59:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 20:59:38,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:38,019 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-14 20:59:38,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-14 20:59:38,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-14 20:59:38,224 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:38,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash 73690207, now seen corresponding path program 1 times [2024-10-14 20:59:38,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:38,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109890258] [2024-10-14 20:59:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:38,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:38,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976187749] [2024-10-14 20:59:38,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:38,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:38,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:38,244 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) [2024-10-14 20:59:38,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 20:59:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:38,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-10-14 20:59:38,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:38,608 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:38,609 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:39,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:39,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109890258] [2024-10-14 20:59:39,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:39,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976187749] [2024-10-14 20:59:39,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976187749] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:39,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:39,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:59:39,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279342124] [2024-10-14 20:59:39,605 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:39,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:59:39,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:39,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:59:39,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:59:39,606 INFO L87 Difference]: Start difference. First operand 375 states and 474 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:40,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:40,099 INFO L93 Difference]: Finished difference Result 398 states and 501 transitions. [2024-10-14 20:59:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:59:40,100 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 49 [2024-10-14 20:59:40,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:40,101 INFO L225 Difference]: With dead ends: 398 [2024-10-14 20:59:40,101 INFO L226 Difference]: Without dead ends: 397 [2024-10-14 20:59:40,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-10-14 20:59:40,102 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 264 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:40,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 257 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:59:40,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-10-14 20:59:40,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 382. [2024-10-14 20:59:40,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 330 states have (on average 1.378787878787879) internal successors, (455), 366 states have internal predecessors, (455), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 20:59:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 481 transitions. [2024-10-14 20:59:40,121 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 481 transitions. Word has length 49 [2024-10-14 20:59:40,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:40,121 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 481 transitions. [2024-10-14 20:59:40,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:59:40,122 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 481 transitions. [2024-10-14 20:59:40,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 20:59:40,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:40,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:40,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-14 20:59:40,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-14 20:59:40,327 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:40,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1063504981, now seen corresponding path program 1 times [2024-10-14 20:59:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135273009] [2024-10-14 20:59:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:40,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1826605952] [2024-10-14 20:59:40,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:40,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:40,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:40,356 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) [2024-10-14 20:59:40,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-14 20:59:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:40,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-14 20:59:40,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:40,585 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:40,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:40,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135273009] [2024-10-14 20:59:40,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:40,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826605952] [2024-10-14 20:59:40,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826605952] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:59:40,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:59:40,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:59:40,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247952757] [2024-10-14 20:59:40,757 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:40,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:59:40,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:40,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:59:40,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:59:40,758 INFO L87 Difference]: Start difference. First operand 382 states and 481 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:41,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:59:41,148 INFO L93 Difference]: Finished difference Result 442 states and 574 transitions. [2024-10-14 20:59:41,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:59:41,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2024-10-14 20:59:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:59:41,150 INFO L225 Difference]: With dead ends: 442 [2024-10-14 20:59:41,150 INFO L226 Difference]: Without dead ends: 433 [2024-10-14 20:59:41,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:59:41,151 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 124 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:59:41,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 119 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:59:41,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-10-14 20:59:41,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 365. [2024-10-14 20:59:41,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 322 states have (on average 1.326086956521739) internal successors, (427), 349 states have internal predecessors, (427), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 20:59:41,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 453 transitions. [2024-10-14 20:59:41,169 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 453 transitions. Word has length 50 [2024-10-14 20:59:41,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:59:41,169 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 453 transitions. [2024-10-14 20:59:41,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:59:41,169 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 453 transitions. [2024-10-14 20:59:41,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 20:59:41,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:59:41,170 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:59:41,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-10-14 20:59:41,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:41,370 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-10-14 20:59:41,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:59:41,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1391084007, now seen corresponding path program 1 times [2024-10-14 20:59:41,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:59:41,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11319453] [2024-10-14 20:59:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:41,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:59:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:59:41,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [61589125] [2024-10-14 20:59:41,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:59:41,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:59:41,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:59:41,391 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) [2024-10-14 20:59:41,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-14 20:59:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:59:41,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 20:59:41,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:59:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:41,789 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:59:43,494 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 20:59:43,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:59:43,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11319453] [2024-10-14 20:59:43,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:59:43,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61589125] [2024-10-14 20:59:43,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61589125] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:59:43,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:59:43,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-10-14 20:59:43,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933089128] [2024-10-14 20:59:43,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:59:43,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 20:59:43,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:59:43,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 20:59:43,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:59:43,496 INFO L87 Difference]: Start difference. First operand 365 states and 453 transitions. Second operand has 16 states, 15 states have (on average 4.733333333333333) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-14 20:59:48,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-14 20:59:52,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-14 20:59:55,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-14 21:00:09,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-10-14 21:00:12,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0, 1] [2024-10-14 21:00:17,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0, 1]