/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/ss3f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:01:27,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:01:27,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:01:27,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:01:27,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:01:27,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:01:27,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:01:27,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:01:27,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:01:27,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:01:27,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:01:27,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:01:27,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:01:27,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:01:27,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:01:27,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:01:27,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:01:27,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:01:27,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:01:27,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:01:27,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:01:27,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:01:27,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:01:27,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:01:27,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:01:27,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:01:27,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:01:27,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:01:27,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:01:27,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:01:27,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:01:27,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:01:27,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:01:27,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:01:27,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:01:27,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:01:27,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:01:27,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:01:27,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:01:27,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:01:27,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:01:27,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:01:27,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:01:27,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:01:27,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:01:27,429 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:01:27,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:01:27,430 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:01:27,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:01:27,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:01:27,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:01:27,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:01:27,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:01:27,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:01:27,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:01:27,431 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:01:27,432 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:01:27,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:01:27,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:01:27,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:01:27,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:01:27,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:01:27,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:01:27,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:01:27,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:01:27,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:01:27,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:01:27,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:01:27,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:01:27,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:01:27,434 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:01:27,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:01:27,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:01:27,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:01:27,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:01:27,828 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:01:27,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss3f.c [2022-10-16 11:01:27,906 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b706e4314/87192d8a81d5421398871be9628a3a25/FLAG28223c601 [2022-10-16 11:01:28,540 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:01:28,541 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3f.c [2022-10-16 11:01:28,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b706e4314/87192d8a81d5421398871be9628a3a25/FLAG28223c601 [2022-10-16 11:01:28,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b706e4314/87192d8a81d5421398871be9628a3a25 [2022-10-16 11:01:28,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:01:28,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:01:28,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:01:28,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:01:28,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:01:28,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:01:28" (1/1) ... [2022-10-16 11:01:28,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed05048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:28, skipping insertion in model container [2022-10-16 11:01:28,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:01:28" (1/1) ... [2022-10-16 11:01:28,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:01:28,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:01:29,129 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3f.c[587,600] [2022-10-16 11:01:29,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:01:29,162 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:01:29,175 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss3f.c[587,600] [2022-10-16 11:01:29,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:01:29,201 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:01:29,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29 WrapperNode [2022-10-16 11:01:29,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:01:29,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:01:29,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:01:29,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:01:29,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,250 INFO L138 Inliner]: procedures = 17, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2022-10-16 11:01:29,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:01:29,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:01:29,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:01:29,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:01:29,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:01:29,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:01:29,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:01:29,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:01:29,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (1/1) ... [2022-10-16 11:01:29,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:01:29,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:29,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:01:29,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:01:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:01:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:01:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:01:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:01:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 11:01:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:01:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:01:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:01:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:01:29,482 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:01:29,485 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:01:29,806 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:01:29,815 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:01:29,815 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-16 11:01:29,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:01:29 BoogieIcfgContainer [2022-10-16 11:01:29,818 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:01:29,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:01:29,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:01:29,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:01:29,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:01:28" (1/3) ... [2022-10-16 11:01:29,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f02a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:01:29, skipping insertion in model container [2022-10-16 11:01:29,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:01:29" (2/3) ... [2022-10-16 11:01:29,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f02a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:01:29, skipping insertion in model container [2022-10-16 11:01:29,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:01:29" (3/3) ... [2022-10-16 11:01:29,829 INFO L112 eAbstractionObserver]: Analyzing ICFG ss3f.c [2022-10-16 11:01:29,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:01:29,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-16 11:01:29,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:01:29,927 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6eaaf3d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:01:29,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-16 11:01:29,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 65 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:29,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:01:29,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:29,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:29,942 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:29,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:29,949 INFO L85 PathProgramCache]: Analyzing trace with hash 177631151, now seen corresponding path program 1 times [2022-10-16 11:01:29,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:29,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744129491] [2022-10-16 11:01:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:29,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:30,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:30,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:30,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744129491] [2022-10-16 11:01:30,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744129491] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:30,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:01:30,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:01:30,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328616780] [2022-10-16 11:01:30,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:30,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:01:30,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:30,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:01:30,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:01:30,197 INFO L87 Difference]: Start difference. First operand has 66 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 65 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:30,222 INFO L93 Difference]: Finished difference Result 127 states and 150 transitions. [2022-10-16 11:01:30,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:01:30,225 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 11:01:30,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:30,236 INFO L225 Difference]: With dead ends: 127 [2022-10-16 11:01:30,237 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 11:01:30,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:01:30,246 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:30,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:01:30,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 11:01:30,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-16 11:01:30,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 57 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2022-10-16 11:01:30,293 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 8 [2022-10-16 11:01:30,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:30,293 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2022-10-16 11:01:30,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2022-10-16 11:01:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:01:30,295 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:30,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:30,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:01:30,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:30,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:30,297 INFO L85 PathProgramCache]: Analyzing trace with hash 179478193, now seen corresponding path program 1 times [2022-10-16 11:01:30,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:30,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911325377] [2022-10-16 11:01:30,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:30,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:30,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:30,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911325377] [2022-10-16 11:01:30,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911325377] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:30,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:01:30,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:01:30,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458768778] [2022-10-16 11:01:30,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:30,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:01:30,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:30,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:01:30,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:01:30,567 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:30,745 INFO L93 Difference]: Finished difference Result 111 states and 119 transitions. [2022-10-16 11:01:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:01:30,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 11:01:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:30,753 INFO L225 Difference]: With dead ends: 111 [2022-10-16 11:01:30,753 INFO L226 Difference]: Without dead ends: 109 [2022-10-16 11:01:30,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:01:30,755 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 46 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:30,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 120 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:01:30,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-10-16 11:01:30,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 62. [2022-10-16 11:01:30,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.558139534883721) internal successors, (67), 61 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2022-10-16 11:01:30,783 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 8 [2022-10-16 11:01:30,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:30,784 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2022-10-16 11:01:30,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:30,785 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2022-10-16 11:01:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:01:30,786 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:30,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:30,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:01:30,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:30,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:30,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1268805299, now seen corresponding path program 1 times [2022-10-16 11:01:30,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:30,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837413008] [2022-10-16 11:01:30,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:30,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:30,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:30,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837413008] [2022-10-16 11:01:30,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837413008] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:30,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:01:30,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:01:30,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281411228] [2022-10-16 11:01:30,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:30,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:01:30,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:01:30,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:01:30,943 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:31,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:31,060 INFO L93 Difference]: Finished difference Result 144 states and 157 transitions. [2022-10-16 11:01:31,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:01:31,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:01:31,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:31,065 INFO L225 Difference]: With dead ends: 144 [2022-10-16 11:01:31,065 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 11:01:31,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:01:31,068 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 132 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:31,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 68 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:01:31,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 11:01:31,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 65. [2022-10-16 11:01:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 47 states have (on average 1.4680851063829787) internal successors, (69), 64 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:31,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2022-10-16 11:01:31,084 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 9 [2022-10-16 11:01:31,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:31,084 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2022-10-16 11:01:31,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:31,085 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2022-10-16 11:01:31,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:01:31,086 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:31,086 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:31,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:01:31,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:31,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:31,088 INFO L85 PathProgramCache]: Analyzing trace with hash 504169901, now seen corresponding path program 1 times [2022-10-16 11:01:31,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:31,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553313579] [2022-10-16 11:01:31,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:31,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:31,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:31,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553313579] [2022-10-16 11:01:31,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553313579] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:31,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244375511] [2022-10-16 11:01:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:31,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:31,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:31,227 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) [2022-10-16 11:01:31,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:01:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:31,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:01:31,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:31,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:31,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:31,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:31,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244375511] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:31,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:31,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:01:31,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970570965] [2022-10-16 11:01:31,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:31,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:01:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:31,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:01:31,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:01:31,441 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:31,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:31,647 INFO L93 Difference]: Finished difference Result 116 states and 125 transitions. [2022-10-16 11:01:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:01:31,648 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 11:01:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:31,651 INFO L225 Difference]: With dead ends: 116 [2022-10-16 11:01:31,651 INFO L226 Difference]: Without dead ends: 115 [2022-10-16 11:01:31,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:01:31,654 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 92 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:31,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 187 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:01:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-16 11:01:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 76. [2022-10-16 11:01:31,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.4655172413793103) internal successors, (85), 75 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2022-10-16 11:01:31,666 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 12 [2022-10-16 11:01:31,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:31,666 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2022-10-16 11:01:31,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2022-10-16 11:01:31,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:01:31,668 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:31,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:31,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:31,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:31,882 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:31,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:31,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1550653641, now seen corresponding path program 1 times [2022-10-16 11:01:31,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:31,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783974736] [2022-10-16 11:01:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:31,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:32,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:32,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783974736] [2022-10-16 11:01:32,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783974736] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:32,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967305353] [2022-10-16 11:01:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:32,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:32,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:32,396 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) [2022-10-16 11:01:32,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:01:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:32,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 11:01:32,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:32,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:01:32,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:01:32,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:01:32,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 11:01:32,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:32,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:32,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967305353] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:32,899 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:32,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 11:01:32,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115390429] [2022-10-16 11:01:32,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:32,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 11:01:32,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:32,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 11:01:32,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:01:32,901 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:33,154 INFO L93 Difference]: Finished difference Result 100 states and 110 transitions. [2022-10-16 11:01:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:01:33,154 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 11:01:33,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:33,155 INFO L225 Difference]: With dead ends: 100 [2022-10-16 11:01:33,156 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 11:01:33,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:01:33,157 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 41 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:33,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 240 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 112 Invalid, 0 Unknown, 39 Unchecked, 0.1s Time] [2022-10-16 11:01:33,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 11:01:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 83. [2022-10-16 11:01:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 65 states have (on average 1.4153846153846155) internal successors, (92), 82 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 92 transitions. [2022-10-16 11:01:33,183 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 92 transitions. Word has length 13 [2022-10-16 11:01:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:33,183 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 92 transitions. [2022-10-16 11:01:33,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:33,184 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 92 transitions. [2022-10-16 11:01:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:01:33,185 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:33,185 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:33,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:33,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:33,387 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:33,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1550602195, now seen corresponding path program 1 times [2022-10-16 11:01:33,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:33,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500652793] [2022-10-16 11:01:33,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:33,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:33,454 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:33,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:33,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500652793] [2022-10-16 11:01:33,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500652793] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:33,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540662790] [2022-10-16 11:01:33,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:33,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:33,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:33,457 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) [2022-10-16 11:01:33,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:01:33,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:33,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:01:33,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:33,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:01:33,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540662790] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:33,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:01:33,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:01:33,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913342750] [2022-10-16 11:01:33,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:33,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:01:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:33,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:01:33,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:01:33,554 INFO L87 Difference]: Start difference. First operand 83 states and 92 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:33,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:33,646 INFO L93 Difference]: Finished difference Result 115 states and 124 transitions. [2022-10-16 11:01:33,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:01:33,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 11:01:33,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:33,647 INFO L225 Difference]: With dead ends: 115 [2022-10-16 11:01:33,647 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 11:01:33,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:01:33,649 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 40 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:33,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 154 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:01:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 11:01:33,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 82. [2022-10-16 11:01:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 81 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:33,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2022-10-16 11:01:33,659 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 13 [2022-10-16 11:01:33,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:33,660 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2022-10-16 11:01:33,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:33,660 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2022-10-16 11:01:33,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:01:33,661 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:33,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:33,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:33,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:33,877 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:33,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1145690293, now seen corresponding path program 1 times [2022-10-16 11:01:33,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:33,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434203449] [2022-10-16 11:01:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:33,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:33,925 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:01:33,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:33,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434203449] [2022-10-16 11:01:33,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434203449] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:33,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:01:33,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:01:33,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863606] [2022-10-16 11:01:33,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:33,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:01:33,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:33,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:01:33,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:01:33,930 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:33,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:33,990 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2022-10-16 11:01:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:01:33,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 11:01:33,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:33,991 INFO L225 Difference]: With dead ends: 114 [2022-10-16 11:01:33,991 INFO L226 Difference]: Without dead ends: 112 [2022-10-16 11:01:33,992 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:01:33,993 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 31 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:33,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 126 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:01:33,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-10-16 11:01:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 87. [2022-10-16 11:01:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 86 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:34,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2022-10-16 11:01:34,004 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 16 [2022-10-16 11:01:34,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:34,004 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2022-10-16 11:01:34,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:34,005 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2022-10-16 11:01:34,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 11:01:34,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:34,006 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:34,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:01:34,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:34,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:34,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1155676655, now seen corresponding path program 1 times [2022-10-16 11:01:34,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:34,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430467235] [2022-10-16 11:01:34,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:34,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:34,526 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:34,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:34,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430467235] [2022-10-16 11:01:34,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430467235] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:34,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958797759] [2022-10-16 11:01:34,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:34,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:34,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:34,528 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) [2022-10-16 11:01:34,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:01:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:34,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 11:01:34,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:34,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:01:34,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:01:34,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:01:34,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:34,803 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-16 11:01:34,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 11:01:34,919 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:34,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:37,081 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int)) (or (forall ((v_ArrVal_132 Int)) (< 0 (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 8)) v_ArrVal_132))) (+ 9223372036854775809 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_36|)))) is different from false [2022-10-16 11:01:37,995 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int) (v_ArrVal_132 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_36| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (let ((.cse0 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 8)) v_ArrVal_132))) (+ 9223372036854775809 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))) is different from false [2022-10-16 11:01:45,922 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-10-16 11:01:45,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958797759] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:45,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:45,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 20 [2022-10-16 11:01:45,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616856389] [2022-10-16 11:01:45,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:45,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 11:01:45,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:45,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 11:01:45,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=269, Unknown=5, NotChecked=70, Total=420 [2022-10-16 11:01:45,925 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand has 21 states, 20 states have (on average 2.3) internal successors, (46), 21 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:46,533 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= (select .cse0 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= |c_ULTIMATE.start_main_~i~0#1| 0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int) (v_ArrVal_132 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_36| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (let ((.cse1 (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 8)) v_ArrVal_132))) (+ 9223372036854775809 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))) is different from false [2022-10-16 11:01:48,539 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (= (select .cse0 0) 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int)) (or (forall ((v_ArrVal_132 Int)) (< 0 (let ((.cse1 (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 8)) v_ArrVal_132))) (+ 9223372036854775809 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_36|)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 11:01:49,363 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= (select .cse0 0) 1) (= .cse1 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (< 0 (+ .cse1 (select .cse0 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int) (v_ArrVal_132 Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_36| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (let ((.cse2 (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 8)) v_ArrVal_132))) (+ 9223372036854775809 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse2) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))))))) is different from false [2022-10-16 11:01:51,374 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= (select .cse0 0) 1) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|) 0) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_36| Int)) (or (forall ((v_ArrVal_132 Int)) (< 0 (let ((.cse1 (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_36| 8)) v_ArrVal_132))) (+ 9223372036854775809 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_36|)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 11:01:51,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:51,665 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2022-10-16 11:01:51,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 11:01:51,666 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.3) internal successors, (46), 21 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 11:01:51,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:51,666 INFO L225 Difference]: With dead ends: 101 [2022-10-16 11:01:51,667 INFO L226 Difference]: Without dead ends: 99 [2022-10-16 11:01:51,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=138, Invalid=477, Unknown=9, NotChecked=306, Total=930 [2022-10-16 11:01:51,668 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 48 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 159 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:51,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 401 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 150 Invalid, 0 Unknown, 159 Unchecked, 0.1s Time] [2022-10-16 11:01:51,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-10-16 11:01:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 80. [2022-10-16 11:01:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 63 states have (on average 1.380952380952381) internal successors, (87), 79 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2022-10-16 11:01:51,677 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 18 [2022-10-16 11:01:51,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:51,678 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2022-10-16 11:01:51,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.3) internal successors, (46), 21 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:51,678 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2022-10-16 11:01:51,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 11:01:51,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:51,679 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:51,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:51,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:51,881 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:51,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:51,882 INFO L85 PathProgramCache]: Analyzing trace with hash -845503427, now seen corresponding path program 1 times [2022-10-16 11:01:51,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:51,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521395634] [2022-10-16 11:01:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:52,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:52,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521395634] [2022-10-16 11:01:52,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521395634] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:52,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926629775] [2022-10-16 11:01:52,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:52,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:52,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:52,008 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) [2022-10-16 11:01:52,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:01:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:52,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:01:52,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:52,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:52,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:52,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926629775] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:52,224 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:52,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:01:52,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532931203] [2022-10-16 11:01:52,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:52,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:01:52,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:52,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:01:52,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:01:52,226 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:52,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:52,532 INFO L93 Difference]: Finished difference Result 219 states and 233 transitions. [2022-10-16 11:01:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 11:01:52,533 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 11:01:52,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:52,535 INFO L225 Difference]: With dead ends: 219 [2022-10-16 11:01:52,535 INFO L226 Difference]: Without dead ends: 171 [2022-10-16 11:01:52,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:01:52,536 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 221 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:52,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 381 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:01:52,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-10-16 11:01:52,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 112. [2022-10-16 11:01:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 95 states have (on average 1.3894736842105264) internal successors, (132), 111 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:52,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 132 transitions. [2022-10-16 11:01:52,548 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 132 transitions. Word has length 19 [2022-10-16 11:01:52,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:52,549 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 132 transitions. [2022-10-16 11:01:52,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:52,549 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 132 transitions. [2022-10-16 11:01:52,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 11:01:52,550 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:52,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:52,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:52,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:52,765 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:52,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:52,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1589199155, now seen corresponding path program 1 times [2022-10-16 11:01:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:52,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080488279] [2022-10-16 11:01:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:52,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:01:52,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:52,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080488279] [2022-10-16 11:01:52,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080488279] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:52,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:01:52,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:01:52,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272305876] [2022-10-16 11:01:52,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:52,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:01:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:01:52,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:01:52,819 INFO L87 Difference]: Start difference. First operand 112 states and 132 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:52,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:52,873 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2022-10-16 11:01:52,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:01:52,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 11:01:52,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:52,874 INFO L225 Difference]: With dead ends: 148 [2022-10-16 11:01:52,875 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 11:01:52,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:01:52,876 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 29 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:52,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 124 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:01:52,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 11:01:52,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 118. [2022-10-16 11:01:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 101 states have (on average 1.3663366336633664) internal successors, (138), 117 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:52,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 138 transitions. [2022-10-16 11:01:52,886 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 138 transitions. Word has length 22 [2022-10-16 11:01:52,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:52,886 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 138 transitions. [2022-10-16 11:01:52,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:52,887 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 138 transitions. [2022-10-16 11:01:52,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:01:52,888 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:52,888 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:52,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 11:01:52,888 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:52,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:52,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1489192897, now seen corresponding path program 2 times [2022-10-16 11:01:52,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:52,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349652745] [2022-10-16 11:01:52,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:52,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:53,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:53,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:53,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349652745] [2022-10-16 11:01:53,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349652745] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:53,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711004912] [2022-10-16 11:01:53,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:01:53,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:53,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:53,822 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) [2022-10-16 11:01:53,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:01:53,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:01:53,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:01:53,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 11:01:53,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:53,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:01:53,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:01:53,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:01:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:54,070 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-10-16 11:01:54,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:01:54,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:54,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2022-10-16 11:01:54,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2022-10-16 11:01:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:54,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:55,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711004912] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:55,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:55,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 11:01:55,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597939147] [2022-10-16 11:01:55,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:55,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 11:01:55,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:55,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 11:01:55,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1072, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 11:01:55,685 INFO L87 Difference]: Start difference. First operand 118 states and 138 transitions. Second operand has 36 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:56,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:56,695 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2022-10-16 11:01:56,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 11:01:56,696 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 11:01:56,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:56,697 INFO L225 Difference]: With dead ends: 130 [2022-10-16 11:01:56,697 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 11:01:56,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 475 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=324, Invalid=1656, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 11:01:56,699 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 87 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 263 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:56,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 591 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 349 Invalid, 0 Unknown, 263 Unchecked, 0.3s Time] [2022-10-16 11:01:56,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 11:01:56,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 120. [2022-10-16 11:01:56,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 103 states have (on average 1.3689320388349515) internal successors, (141), 119 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:56,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2022-10-16 11:01:56,708 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 23 [2022-10-16 11:01:56,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:56,709 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2022-10-16 11:01:56,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2022-10-16 11:01:56,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:01:56,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:56,710 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:56,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:56,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:56,926 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:01:56,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:56,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1079660375, now seen corresponding path program 1 times [2022-10-16 11:01:56,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:56,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135733626] [2022-10-16 11:01:56,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:56,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:57,431 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:57,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:57,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135733626] [2022-10-16 11:01:57,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135733626] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:57,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900879471] [2022-10-16 11:01:57,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:57,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:57,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:57,442 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) [2022-10-16 11:01:57,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:01:57,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:57,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 11:01:57,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:57,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:01:57,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 11:01:57,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 11:01:57,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 11:01:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:57,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:59,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 186 treesize of output 174 [2022-10-16 11:01:59,926 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:59,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900879471] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:59,926 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:59,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 26 [2022-10-16 11:01:59,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227598806] [2022-10-16 11:01:59,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:59,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 11:01:59,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:59,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 11:01:59,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=610, Unknown=0, NotChecked=0, Total=702 [2022-10-16 11:01:59,928 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:00,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:00,546 INFO L93 Difference]: Finished difference Result 195 states and 220 transitions. [2022-10-16 11:02:00,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 11:02:00,547 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 11:02:00,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:00,549 INFO L225 Difference]: With dead ends: 195 [2022-10-16 11:02:00,549 INFO L226 Difference]: Without dead ends: 194 [2022-10-16 11:02:00,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 11:02:00,550 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 239 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:00,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 787 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 604 Invalid, 0 Unknown, 65 Unchecked, 0.4s Time] [2022-10-16 11:02:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-10-16 11:02:00,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 130. [2022-10-16 11:02:00,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 113 states have (on average 1.345132743362832) internal successors, (152), 129 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:00,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2022-10-16 11:02:00,572 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 24 [2022-10-16 11:02:00,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:00,573 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2022-10-16 11:02:00,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:00,573 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2022-10-16 11:02:00,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:02:00,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:00,574 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:00,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:00,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:00,788 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:00,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:00,789 INFO L85 PathProgramCache]: Analyzing trace with hash -897513823, now seen corresponding path program 2 times [2022-10-16 11:02:00,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:00,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777135134] [2022-10-16 11:02:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:00,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:00,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777135134] [2022-10-16 11:02:00,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777135134] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:00,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201951592] [2022-10-16 11:02:00,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:02:00,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:00,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:00,918 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) [2022-10-16 11:02:00,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 11:02:00,976 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:02:00,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:02:00,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:02:00,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:01,045 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:02:01,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:02:01,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201951592] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:01,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:01,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 11:02:01,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075139159] [2022-10-16 11:02:01,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:01,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:02:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:02:01,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:02:01,096 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:01,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:01,358 INFO L93 Difference]: Finished difference Result 167 states and 200 transitions. [2022-10-16 11:02:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:02:01,358 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 11:02:01,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:01,361 INFO L225 Difference]: With dead ends: 167 [2022-10-16 11:02:01,361 INFO L226 Difference]: Without dead ends: 166 [2022-10-16 11:02:01,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 11:02:01,363 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 235 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:01,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 189 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:02:01,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-10-16 11:02:01,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 123. [2022-10-16 11:02:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 122 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2022-10-16 11:02:01,379 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 24 [2022-10-16 11:02:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:01,382 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2022-10-16 11:02:01,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:01,382 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2022-10-16 11:02:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:02:01,389 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:01,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:01,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:01,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 11:02:01,592 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:01,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:01,593 INFO L85 PathProgramCache]: Analyzing trace with hash -248684241, now seen corresponding path program 1 times [2022-10-16 11:02:01,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:01,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520135130] [2022-10-16 11:02:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:01,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:01,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:02:01,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:01,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520135130] [2022-10-16 11:02:01,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520135130] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:01,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527504150] [2022-10-16 11:02:01,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:01,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:01,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:01,679 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) [2022-10-16 11:02:01,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 11:02:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:01,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:02:01,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:02:01,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:02:01,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527504150] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:01,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:01,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 15 [2022-10-16 11:02:01,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498959243] [2022-10-16 11:02:01,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:01,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:02:01,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:01,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:02:01,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:02:01,891 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:02,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:02,245 INFO L93 Difference]: Finished difference Result 236 states and 268 transitions. [2022-10-16 11:02:02,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 11:02:02,246 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 11:02:02,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:02,248 INFO L225 Difference]: With dead ends: 236 [2022-10-16 11:02:02,248 INFO L226 Difference]: Without dead ends: 200 [2022-10-16 11:02:02,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:02:02,250 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 293 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:02,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 355 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:02:02,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-10-16 11:02:02,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 123. [2022-10-16 11:02:02,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 122 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2022-10-16 11:02:02,262 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 26 [2022-10-16 11:02:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:02,263 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2022-10-16 11:02:02,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2022-10-16 11:02:02,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:02:02,264 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:02,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:02,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:02,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 11:02:02,478 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:02,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:02,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1828467691, now seen corresponding path program 1 times [2022-10-16 11:02:02,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:02,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635899041] [2022-10-16 11:02:02,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:02,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:02:02,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:02,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635899041] [2022-10-16 11:02:02,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635899041] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:02,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103801183] [2022-10-16 11:02:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:02,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:02,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:02,573 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) [2022-10-16 11:02:02,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 11:02:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:02,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:02:02,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:02:02,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:02:02,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103801183] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:02,705 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:02,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:02:02,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769191826] [2022-10-16 11:02:02,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:02,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:02:02,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:02,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:02:02,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:02:02,707 INFO L87 Difference]: Start difference. First operand 123 states and 142 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:02,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:02,877 INFO L93 Difference]: Finished difference Result 179 states and 210 transitions. [2022-10-16 11:02:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:02:02,877 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 11:02:02,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:02,879 INFO L225 Difference]: With dead ends: 179 [2022-10-16 11:02:02,879 INFO L226 Difference]: Without dead ends: 178 [2022-10-16 11:02:02,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:02:02,880 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 78 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:02,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 265 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:02:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-10-16 11:02:02,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 138. [2022-10-16 11:02:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 122 states have (on average 1.360655737704918) internal successors, (166), 137 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:02,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 166 transitions. [2022-10-16 11:02:02,894 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 166 transitions. Word has length 26 [2022-10-16 11:02:02,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:02,894 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 166 transitions. [2022-10-16 11:02:02,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:02,895 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 166 transitions. [2022-10-16 11:02:02,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:02:02,895 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:02,895 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:02,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:03,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 11:02:03,109 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:03,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:03,110 INFO L85 PathProgramCache]: Analyzing trace with hash 880671773, now seen corresponding path program 1 times [2022-10-16 11:02:03,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:03,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174695529] [2022-10-16 11:02:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:03,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:03,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:03,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174695529] [2022-10-16 11:02:03,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174695529] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:03,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486943653] [2022-10-16 11:02:03,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:03,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:03,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:03,770 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) [2022-10-16 11:02:03,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 11:02:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:03,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 11:02:03,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:03,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:02:03,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:02:03,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:02:04,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-10-16 11:02:04,115 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:02:04,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:02:04,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486943653] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:04,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:04,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 23 [2022-10-16 11:02:04,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819010890] [2022-10-16 11:02:04,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:04,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 11:02:04,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:04,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 11:02:04,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:02:04,343 INFO L87 Difference]: Start difference. First operand 138 states and 166 transitions. Second operand has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:05,306 INFO L93 Difference]: Finished difference Result 187 states and 220 transitions. [2022-10-16 11:02:05,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 11:02:05,306 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 11:02:05,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:05,308 INFO L225 Difference]: With dead ends: 187 [2022-10-16 11:02:05,308 INFO L226 Difference]: Without dead ends: 186 [2022-10-16 11:02:05,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=379, Invalid=1513, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 11:02:05,325 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 300 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:05,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 430 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 307 Invalid, 0 Unknown, 68 Unchecked, 0.3s Time] [2022-10-16 11:02:05,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-10-16 11:02:05,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 144. [2022-10-16 11:02:05,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 128 states have (on average 1.359375) internal successors, (174), 143 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 174 transitions. [2022-10-16 11:02:05,340 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 174 transitions. Word has length 27 [2022-10-16 11:02:05,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:05,340 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 174 transitions. [2022-10-16 11:02:05,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,341 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 174 transitions. [2022-10-16 11:02:05,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:02:05,341 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:05,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:05,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:05,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 11:02:05,554 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:05,555 INFO L85 PathProgramCache]: Analyzing trace with hash 847923653, now seen corresponding path program 1 times [2022-10-16 11:02:05,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:05,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654481432] [2022-10-16 11:02:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:05,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:02:05,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:05,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654481432] [2022-10-16 11:02:05,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654481432] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:05,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476946101] [2022-10-16 11:02:05,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:05,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:05,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:05,624 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) [2022-10-16 11:02:05,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 11:02:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:05,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:02:05,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:02:05,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:02:05,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476946101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:02:05,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:02:05,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:02:05,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74954700] [2022-10-16 11:02:05,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:02:05,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:02:05,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:05,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:02:05,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:02:05,707 INFO L87 Difference]: Start difference. First operand 144 states and 174 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:05,795 INFO L93 Difference]: Finished difference Result 171 states and 208 transitions. [2022-10-16 11:02:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:02:05,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 11:02:05,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:05,796 INFO L225 Difference]: With dead ends: 171 [2022-10-16 11:02:05,796 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 11:02:05,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:02:05,798 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 37 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:05,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 178 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:02:05,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 11:02:05,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 143. [2022-10-16 11:02:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 128 states have (on average 1.3359375) internal successors, (171), 142 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 171 transitions. [2022-10-16 11:02:05,811 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 171 transitions. Word has length 27 [2022-10-16 11:02:05,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:05,811 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 171 transitions. [2022-10-16 11:02:05,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,811 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 171 transitions. [2022-10-16 11:02:05,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:02:05,812 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:05,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:05,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:06,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 11:02:06,027 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:06,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:06,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1531021301, now seen corresponding path program 1 times [2022-10-16 11:02:06,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:06,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951181804] [2022-10-16 11:02:06,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:06,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:06,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:06,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:06,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951181804] [2022-10-16 11:02:06,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951181804] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:06,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141019785] [2022-10-16 11:02:06,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:06,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:06,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:06,683 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) [2022-10-16 11:02:06,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 11:02:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:06,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 11:02:06,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:06,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:02:06,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:02:06,822 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:02:06,992 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2022-10-16 11:02:07,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-10-16 11:02:07,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-10-16 11:02:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:07,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:07,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141019785] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:07,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:07,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-10-16 11:02:07,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278622013] [2022-10-16 11:02:07,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:07,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 11:02:07,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:07,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 11:02:07,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=641, Unknown=0, NotChecked=0, Total=812 [2022-10-16 11:02:07,844 INFO L87 Difference]: Start difference. First operand 143 states and 171 transitions. Second operand has 29 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 29 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:08,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:08,787 INFO L93 Difference]: Finished difference Result 219 states and 258 transitions. [2022-10-16 11:02:08,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 11:02:08,790 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 29 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 11:02:08,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:08,791 INFO L225 Difference]: With dead ends: 219 [2022-10-16 11:02:08,791 INFO L226 Difference]: Without dead ends: 218 [2022-10-16 11:02:08,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=371, Invalid=1351, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 11:02:08,792 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 237 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 206 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:08,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 609 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 303 Invalid, 0 Unknown, 206 Unchecked, 0.3s Time] [2022-10-16 11:02:08,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-10-16 11:02:08,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 168. [2022-10-16 11:02:08,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 153 states have (on average 1.326797385620915) internal successors, (203), 167 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:08,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 203 transitions. [2022-10-16 11:02:08,808 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 203 transitions. Word has length 28 [2022-10-16 11:02:08,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:08,808 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 203 transitions. [2022-10-16 11:02:08,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.7142857142857144) internal successors, (76), 29 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:08,808 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 203 transitions. [2022-10-16 11:02:08,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:02:08,809 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:08,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:08,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:09,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 11:02:09,024 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:09,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:09,025 INFO L85 PathProgramCache]: Analyzing trace with hash -190144603, now seen corresponding path program 2 times [2022-10-16 11:02:09,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:09,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457431410] [2022-10-16 11:02:09,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:09,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:09,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:09,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457431410] [2022-10-16 11:02:09,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457431410] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:09,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329570025] [2022-10-16 11:02:09,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:02:09,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:09,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:09,611 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) [2022-10-16 11:02:09,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:02:09,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:02:09,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:02:09,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 11:02:09,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:09,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:02:09,906 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 11:02:09,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 11:02:10,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:10,029 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 11:02:10,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:10,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 11:02:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:10,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:11,259 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_459 Int)) (or (< (+ v_ArrVal_459 9223372036854775808) 0) (< 0 (+ v_ArrVal_459 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_459)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) is different from false [2022-10-16 11:02:15,997 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_459 Int) (v_ArrVal_457 Int)) (or (< (+ v_ArrVal_459 9223372036854775808) 0) (< 0 (+ (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_457)))) (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_459))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_459 9223372036854775809)))) is different from false [2022-10-16 11:02:18,020 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_80| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_80|)) (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_459 Int) (v_ArrVal_457 Int)) (or (< (+ v_ArrVal_459 9223372036854775808) 0) (< 0 (+ v_ArrVal_459 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_80| 8)) v_ArrVal_457)))) (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_459))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809)))))) is different from false [2022-10-16 11:02:19,177 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_80| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_459 Int) (v_ArrVal_457 Int)) (or (< (+ v_ArrVal_459 9223372036854775808) 0) (< |v_ULTIMATE.start_main_~i~0#1_80| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (+ v_ArrVal_459 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_80| 8)) v_ArrVal_457)))) (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_459))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809)))) is different from false [2022-10-16 11:02:19,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 374 treesize of output 362 [2022-10-16 11:02:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 12 not checked. [2022-10-16 11:02:19,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329570025] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:19,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:19,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-10-16 11:02:19,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076063181] [2022-10-16 11:02:19,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:19,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 11:02:19,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:19,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 11:02:19,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1007, Unknown=4, NotChecked=268, Total=1406 [2022-10-16 11:02:19,524 INFO L87 Difference]: Start difference. First operand 168 states and 203 transitions. Second operand has 38 states, 37 states have (on average 2.054054054054054) internal successors, (76), 38 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:20,413 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (select .cse3 .cse0))) (and (= .cse0 8) (= .cse1 1) (<= 1 .cse1) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|v_ULTIMATE.start_main_~i~0#1_80| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_459 Int) (v_ArrVal_457 Int)) (or (< (+ v_ArrVal_459 9223372036854775808) 0) (< |v_ULTIMATE.start_main_~i~0#1_80| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (+ v_ArrVal_459 (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse3 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_80| 8)) v_ArrVal_457)))) (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_459))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~i~0#1| 1)))) is different from false [2022-10-16 11:02:22,427 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (= (select .cse0 8) 1) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 1 |c_ULTIMATE.start_main_#t~post6#1|) (<= (div (+ 8 (* (- 1) |c_ULTIMATE.start_main_~a~0#1.offset|)) 8) |c_ULTIMATE.start_main_#t~post6#1|) (<= 1 (select .cse0 .cse1)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_80| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_80|)) (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_459 Int) (v_ArrVal_457 Int)) (or (< (+ v_ArrVal_459 9223372036854775808) 0) (< 0 (+ v_ArrVal_459 (select (select (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_80| 8)) v_ArrVal_457)))) (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_459))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 9223372036854775809)))))))) is different from false [2022-10-16 11:02:23,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:23,506 INFO L93 Difference]: Finished difference Result 213 states and 249 transitions. [2022-10-16 11:02:23,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:02:23,507 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.054054054054054) internal successors, (76), 38 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 11:02:23,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:23,508 INFO L225 Difference]: With dead ends: 213 [2022-10-16 11:02:23,508 INFO L226 Difference]: Without dead ends: 212 [2022-10-16 11:02:23,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=267, Invalid=1821, Unknown=6, NotChecked=558, Total=2652 [2022-10-16 11:02:23,510 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 186 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 408 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:23,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1137 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 899 Invalid, 0 Unknown, 408 Unchecked, 0.6s Time] [2022-10-16 11:02:23,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-10-16 11:02:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 154. [2022-10-16 11:02:23,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 139 states have (on average 1.3381294964028776) internal successors, (186), 153 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:23,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 186 transitions. [2022-10-16 11:02:23,526 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 186 transitions. Word has length 28 [2022-10-16 11:02:23,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:23,526 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 186 transitions. [2022-10-16 11:02:23,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.054054054054054) internal successors, (76), 38 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 186 transitions. [2022-10-16 11:02:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 11:02:23,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:23,527 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:23,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:23,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:23,742 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:23,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1189153465, now seen corresponding path program 3 times [2022-10-16 11:02:23,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:23,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797544847] [2022-10-16 11:02:23,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:23,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:23,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:23,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:23,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797544847] [2022-10-16 11:02:23,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797544847] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:23,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433173221] [2022-10-16 11:02:23,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:02:23,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:23,939 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) [2022-10-16 11:02:23,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:02:24,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 11:02:24,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:02:24,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 11:02:24,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:24,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:24,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433173221] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:24,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:24,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 11:02:24,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261005132] [2022-10-16 11:02:24,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:24,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 11:02:24,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:24,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 11:02:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:02:24,273 INFO L87 Difference]: Start difference. First operand 154 states and 186 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:24,746 INFO L93 Difference]: Finished difference Result 408 states and 501 transitions. [2022-10-16 11:02:24,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 11:02:24,746 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 11:02:24,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:24,748 INFO L225 Difference]: With dead ends: 408 [2022-10-16 11:02:24,748 INFO L226 Difference]: Without dead ends: 321 [2022-10-16 11:02:24,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 9 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 11:02:24,750 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 362 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:24,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 405 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:02:24,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-10-16 11:02:24,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 205. [2022-10-16 11:02:24,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 190 states have (on average 1.3263157894736841) internal successors, (252), 204 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:24,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 252 transitions. [2022-10-16 11:02:24,782 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 252 transitions. Word has length 29 [2022-10-16 11:02:24,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:24,782 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 252 transitions. [2022-10-16 11:02:24,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:24,782 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 252 transitions. [2022-10-16 11:02:24,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 11:02:24,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:24,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:24,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:24,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:24,997 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:24,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1862308553, now seen corresponding path program 1 times [2022-10-16 11:02:24,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:24,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087730466] [2022-10-16 11:02:24,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:24,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:25,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:02:25,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:25,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087730466] [2022-10-16 11:02:25,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087730466] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:02:25,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:02:25,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:02:25,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111358706] [2022-10-16 11:02:25,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:02:25,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:02:25,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:25,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:02:25,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:02:25,054 INFO L87 Difference]: Start difference. First operand 205 states and 252 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:25,125 INFO L93 Difference]: Finished difference Result 233 states and 288 transitions. [2022-10-16 11:02:25,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:02:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 11:02:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:25,127 INFO L225 Difference]: With dead ends: 233 [2022-10-16 11:02:25,127 INFO L226 Difference]: Without dead ends: 231 [2022-10-16 11:02:25,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:02:25,129 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 25 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:25,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 122 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:02:25,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-10-16 11:02:25,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 215. [2022-10-16 11:02:25,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 200 states have (on average 1.33) internal successors, (266), 214 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:25,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 266 transitions. [2022-10-16 11:02:25,151 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 266 transitions. Word has length 30 [2022-10-16 11:02:25,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:25,152 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 266 transitions. [2022-10-16 11:02:25,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:25,152 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 266 transitions. [2022-10-16 11:02:25,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 11:02:25,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:25,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:25,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 11:02:25,153 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:25,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:25,154 INFO L85 PathProgramCache]: Analyzing trace with hash 496870551, now seen corresponding path program 1 times [2022-10-16 11:02:25,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:25,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017039920] [2022-10-16 11:02:25,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:25,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:25,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:02:25,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:25,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017039920] [2022-10-16 11:02:25,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017039920] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:25,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596528856] [2022-10-16 11:02:25,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:25,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:25,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:25,274 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) [2022-10-16 11:02:25,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:02:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:25,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:02:25,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:02:25,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:25,524 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:02:25,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596528856] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:25,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:25,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:02:25,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608552841] [2022-10-16 11:02:25,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:25,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:02:25,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:25,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:02:25,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:02:25,526 INFO L87 Difference]: Start difference. First operand 215 states and 266 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:25,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:25,938 INFO L93 Difference]: Finished difference Result 326 states and 389 transitions. [2022-10-16 11:02:25,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:02:25,939 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 11:02:25,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:25,941 INFO L225 Difference]: With dead ends: 326 [2022-10-16 11:02:25,941 INFO L226 Difference]: Without dead ends: 232 [2022-10-16 11:02:25,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:02:25,944 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 225 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:25,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 532 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:02:25,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-10-16 11:02:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 177. [2022-10-16 11:02:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 162 states have (on average 1.308641975308642) internal successors, (212), 176 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 212 transitions. [2022-10-16 11:02:25,962 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 212 transitions. Word has length 31 [2022-10-16 11:02:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:25,962 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 212 transitions. [2022-10-16 11:02:25,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 212 transitions. [2022-10-16 11:02:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:02:25,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:25,963 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 11:02:25,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-10-16 11:02:26,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 11:02:26,178 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:26,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1941421149, now seen corresponding path program 1 times [2022-10-16 11:02:26,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:26,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739951966] [2022-10-16 11:02:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:26,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:26,321 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:02:26,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:26,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739951966] [2022-10-16 11:02:26,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739951966] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:26,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426860165] [2022-10-16 11:02:26,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:26,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:26,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:26,323 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) [2022-10-16 11:02:26,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:02:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:26,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:02:26,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:02:26,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:02:26,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426860165] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:26,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:26,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:02:26,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010081237] [2022-10-16 11:02:26,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:26,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:02:26,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:26,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:02:26,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:02:26,590 INFO L87 Difference]: Start difference. First operand 177 states and 212 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:26,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:26,866 INFO L93 Difference]: Finished difference Result 250 states and 289 transitions. [2022-10-16 11:02:26,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 11:02:26,867 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 11:02:26,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:26,868 INFO L225 Difference]: With dead ends: 250 [2022-10-16 11:02:26,868 INFO L226 Difference]: Without dead ends: 223 [2022-10-16 11:02:26,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:02:26,869 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 133 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:26,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 304 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:02:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-10-16 11:02:26,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 181. [2022-10-16 11:02:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 166 states have (on average 1.3012048192771084) internal successors, (216), 180 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:26,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 216 transitions. [2022-10-16 11:02:26,888 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 216 transitions. Word has length 33 [2022-10-16 11:02:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:26,888 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 216 transitions. [2022-10-16 11:02:26,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 216 transitions. [2022-10-16 11:02:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:02:26,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:26,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:26,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:27,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:27,105 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:02:27,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash -704379957, now seen corresponding path program 4 times [2022-10-16 11:02:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:27,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993964540] [2022-10-16 11:02:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:28,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:28,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993964540] [2022-10-16 11:02:28,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993964540] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:28,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39478547] [2022-10-16 11:02:28,562 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 11:02:28,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:28,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:28,563 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) [2022-10-16 11:02:28,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 11:02:28,647 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 11:02:28,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:02:28,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 11:02:28,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:28,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:02:28,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:28,721 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:02:28,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:28,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:28,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-16 11:02:29,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-10-16 11:02:29,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:02:29,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2022-10-16 11:02:30,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:30,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:30,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:30,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:30,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:30,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:02:30,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 52 [2022-10-16 11:02:30,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:30,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 21 [2022-10-16 11:02:30,480 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:30,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:46,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39478547] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:46,379 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:46,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 56 [2022-10-16 11:02:46,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465141758] [2022-10-16 11:02:46,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:46,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-10-16 11:02:46,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:46,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-10-16 11:02:46,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2844, Unknown=4, NotChecked=0, Total=3192 [2022-10-16 11:02:46,383 INFO L87 Difference]: Start difference. First operand 181 states and 216 transitions. Second operand has 57 states, 56 states have (on average 1.625) internal successors, (91), 57 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:09,056 WARN L233 SmtUtils]: Spent 7.18s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:03:40,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:40,324 INFO L93 Difference]: Finished difference Result 237 states and 279 transitions. [2022-10-16 11:03:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 11:03:40,325 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 1.625) internal successors, (91), 57 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 11:03:40,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:40,326 INFO L225 Difference]: With dead ends: 237 [2022-10-16 11:03:40,327 INFO L226 Difference]: Without dead ends: 236 [2022-10-16 11:03:40,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1766 ImplicationChecksByTransitivity, 69.9s TimeCoverageRelationStatistics Valid=979, Invalid=7565, Unknown=12, NotChecked=0, Total=8556 [2022-10-16 11:03:40,330 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 114 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 836 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:40,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 906 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 617 Invalid, 0 Unknown, 836 Unchecked, 0.8s Time] [2022-10-16 11:03:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-10-16 11:03:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 212. [2022-10-16 11:03:40,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 197 states have (on average 1.2791878172588833) internal successors, (252), 211 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:40,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 252 transitions. [2022-10-16 11:03:40,355 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 252 transitions. Word has length 33 [2022-10-16 11:03:40,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:40,355 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 252 transitions. [2022-10-16 11:03:40,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 1.625) internal successors, (91), 57 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:40,355 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 252 transitions. [2022-10-16 11:03:40,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:03:40,356 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:40,356 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:40,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-10-16 11:03:40,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:40,558 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:03:40,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:40,559 INFO L85 PathProgramCache]: Analyzing trace with hash -360942113, now seen corresponding path program 3 times [2022-10-16 11:03:40,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:40,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567277305] [2022-10-16 11:03:40,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:40,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:41,208 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:03:41,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:41,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567277305] [2022-10-16 11:03:41,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567277305] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:03:41,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457593559] [2022-10-16 11:03:41,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:03:41,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:41,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:41,210 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) [2022-10-16 11:03:41,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 11:03:41,298 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 11:03:41,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:03:41,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 11:03:41,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:41,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:03:41,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:03:41,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-10-16 11:03:42,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:03:42,534 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 11:03:42,534 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 18 [2022-10-16 11:03:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:03:42,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:45,385 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:03:45,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 24 [2022-10-16 11:03:49,474 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_112| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< |v_ULTIMATE.start_main_~i~0#1_112| 2) (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_112|) |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (not (< |v_ULTIMATE.start_main_~i~0#1_112| c_~N~0))))) is different from false [2022-10-16 11:03:49,495 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_112| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< |c_ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~0#1_112| 1)) (< |v_ULTIMATE.start_main_~i~0#1_112| 2) (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_112|) |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0))))) is different from false [2022-10-16 11:03:49,519 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_112| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< |v_ULTIMATE.start_main_~i~0#1_112| 2) (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_112|) |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< |c_ULTIMATE.start_main_#t~post6#1| |v_ULTIMATE.start_main_~i~0#1_112|)))) is different from false [2022-10-16 11:03:49,563 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_112| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< |v_ULTIMATE.start_main_~i~0#1_112| 2) (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_112|) |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< |c_ULTIMATE.start_main_~i~0#1| |v_ULTIMATE.start_main_~i~0#1_112|)))) is different from false [2022-10-16 11:03:49,585 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:03:49,585 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2022-10-16 11:03:49,602 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:03:49,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 48 [2022-10-16 11:03:49,619 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:03:49,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2022-10-16 11:03:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 3 times theorem prover too weak. 0 trivial. 9 not checked. [2022-10-16 11:03:50,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457593559] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:50,068 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:03:50,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 18] total 48 [2022-10-16 11:03:50,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998378421] [2022-10-16 11:03:50,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:50,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 11:03:50,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 11:03:50,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1797, Unknown=13, NotChecked=356, Total=2352 [2022-10-16 11:03:50,070 INFO L87 Difference]: Start difference. First operand 212 states and 252 transitions. Second operand has 49 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 49 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:52,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:52,097 INFO L93 Difference]: Finished difference Result 259 states and 309 transitions. [2022-10-16 11:03:52,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 11:03:52,098 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 49 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 11:03:52,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:52,100 INFO L225 Difference]: With dead ends: 259 [2022-10-16 11:03:52,100 INFO L226 Difference]: Without dead ends: 258 [2022-10-16 11:03:52,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 922 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=392, Invalid=3643, Unknown=13, NotChecked=508, Total=4556 [2022-10-16 11:03:52,103 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 74 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 341 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:52,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 591 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 339 Invalid, 0 Unknown, 341 Unchecked, 0.3s Time] [2022-10-16 11:03:52,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-10-16 11:03:52,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 242. [2022-10-16 11:03:52,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 227 states have (on average 1.2687224669603525) internal successors, (288), 241 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:52,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 288 transitions. [2022-10-16 11:03:52,146 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 288 transitions. Word has length 34 [2022-10-16 11:03:52,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:52,147 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 288 transitions. [2022-10-16 11:03:52,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 49 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:52,156 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 288 transitions. [2022-10-16 11:03:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:03:52,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:52,156 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:52,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 11:03:52,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:52,370 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:03:52,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1689961549, now seen corresponding path program 1 times [2022-10-16 11:03:52,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:52,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107059863] [2022-10-16 11:03:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:52,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:53,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:03:53,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:03:53,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107059863] [2022-10-16 11:03:53,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107059863] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:03:53,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906415761] [2022-10-16 11:03:53,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:53,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:03:53,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:03:53,468 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) [2022-10-16 11:03:53,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 11:03:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:03:53,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 38 conjunts are in the unsatisfiable core [2022-10-16 11:03:53,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:03:53,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:03:53,576 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:03:53,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:03:53,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2022-10-16 11:03:54,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-10-16 11:03:54,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-10-16 11:03:54,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 11:03:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:03:54,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:03:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:03:57,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906415761] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:03:57,908 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:03:57,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-10-16 11:03:57,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709473559] [2022-10-16 11:03:57,909 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:03:57,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 11:03:57,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:03:57,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 11:03:57,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=266, Invalid=1140, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 11:03:57,912 INFO L87 Difference]: Start difference. First operand 242 states and 288 transitions. Second operand has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:03:59,677 INFO L93 Difference]: Finished difference Result 263 states and 309 transitions. [2022-10-16 11:03:59,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 11:03:59,682 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 11:03:59,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:03:59,684 INFO L225 Difference]: With dead ends: 263 [2022-10-16 11:03:59,684 INFO L226 Difference]: Without dead ends: 262 [2022-10-16 11:03:59,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=432, Invalid=1638, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 11:03:59,686 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 289 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 255 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 11:03:59,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 730 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 350 Invalid, 0 Unknown, 255 Unchecked, 0.5s Time] [2022-10-16 11:03:59,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-10-16 11:03:59,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 245. [2022-10-16 11:03:59,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 230 states have (on average 1.2652173913043478) internal successors, (291), 244 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:59,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 291 transitions. [2022-10-16 11:03:59,714 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 291 transitions. Word has length 35 [2022-10-16 11:03:59,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:03:59,714 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 291 transitions. [2022-10-16 11:03:59,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:03:59,715 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 291 transitions. [2022-10-16 11:03:59,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 11:03:59,715 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:03:59,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:03:59,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 11:03:59,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 11:03:59,928 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:03:59,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:03:59,929 INFO L85 PathProgramCache]: Analyzing trace with hash -849200331, now seen corresponding path program 1 times [2022-10-16 11:03:59,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:03:59,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217763116] [2022-10-16 11:03:59,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:03:59,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:03:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:01,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:01,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217763116] [2022-10-16 11:04:01,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217763116] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:01,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635641175] [2022-10-16 11:04:01,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:01,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:01,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:01,016 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:01,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 11:04:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:01,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 40 conjunts are in the unsatisfiable core [2022-10-16 11:04:01,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:01,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:04:01,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:04:01,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:04:01,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2022-10-16 11:04:01,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-10-16 11:04:01,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 28 [2022-10-16 11:04:02,151 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 11:04:02,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:02,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:04:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:04,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635641175] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:04:04,433 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:04:04,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-10-16 11:04:04,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28434393] [2022-10-16 11:04:04,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:04:04,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 11:04:04,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:04,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 11:04:04,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1136, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 11:04:04,436 INFO L87 Difference]: Start difference. First operand 245 states and 291 transitions. Second operand has 38 states, 37 states have (on average 2.7027027027027026) internal successors, (100), 38 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:05,218 INFO L93 Difference]: Finished difference Result 262 states and 308 transitions. [2022-10-16 11:04:05,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 11:04:05,219 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.7027027027027026) internal successors, (100), 38 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-10-16 11:04:05,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:05,221 INFO L225 Difference]: With dead ends: 262 [2022-10-16 11:04:05,221 INFO L226 Difference]: Without dead ends: 261 [2022-10-16 11:04:05,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=386, Invalid=1506, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 11:04:05,222 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 204 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 268 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:05,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 605 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 265 Invalid, 0 Unknown, 268 Unchecked, 0.4s Time] [2022-10-16 11:04:05,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-10-16 11:04:05,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 246. [2022-10-16 11:04:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 231 states have (on average 1.2640692640692641) internal successors, (292), 245 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:05,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 292 transitions. [2022-10-16 11:04:05,266 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 292 transitions. Word has length 36 [2022-10-16 11:04:05,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:05,266 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 292 transitions. [2022-10-16 11:04:05,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.7027027027027026) internal successors, (100), 38 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:05,267 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 292 transitions. [2022-10-16 11:04:05,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 11:04:05,267 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:05,267 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:05,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 11:04:05,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 11:04:05,482 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:05,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -842109923, now seen corresponding path program 2 times [2022-10-16 11:04:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:05,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943306490] [2022-10-16 11:04:05,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 11:04:05,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:05,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943306490] [2022-10-16 11:04:05,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943306490] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:05,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26380] [2022-10-16 11:04:05,562 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:04:05,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:05,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:05,563 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:05,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 11:04:05,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:04:05,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:05,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:04:05,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 11:04:05,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:04:05,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26380] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:04:05,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:04:05,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 11:04:05,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210795866] [2022-10-16 11:04:05,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:04:05,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:04:05,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:05,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:04:05,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:04:05,668 INFO L87 Difference]: Start difference. First operand 246 states and 292 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:05,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:05,777 INFO L93 Difference]: Finished difference Result 246 states and 292 transitions. [2022-10-16 11:04:05,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:04:05,777 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2022-10-16 11:04:05,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:05,778 INFO L225 Difference]: With dead ends: 246 [2022-10-16 11:04:05,779 INFO L226 Difference]: Without dead ends: 245 [2022-10-16 11:04:05,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 11:04:05,781 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 43 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:05,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 78 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:04:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-10-16 11:04:05,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2022-10-16 11:04:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 231 states have (on average 1.2467532467532467) internal successors, (288), 244 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 288 transitions. [2022-10-16 11:04:05,813 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 288 transitions. Word has length 37 [2022-10-16 11:04:05,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:05,813 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 288 transitions. [2022-10-16 11:04:05,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:05,814 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 288 transitions. [2022-10-16 11:04:05,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:04:05,814 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:05,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:05,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 11:04:06,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 11:04:06,030 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:06,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:06,031 INFO L85 PathProgramCache]: Analyzing trace with hash -37727433, now seen corresponding path program 1 times [2022-10-16 11:04:06,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:06,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588158943] [2022-10-16 11:04:06,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:06,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:04:06,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:06,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588158943] [2022-10-16 11:04:06,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588158943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:04:06,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:04:06,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:04:06,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473047207] [2022-10-16 11:04:06,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:04:06,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:04:06,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:06,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:04:06,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:04:06,096 INFO L87 Difference]: Start difference. First operand 245 states and 288 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:06,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:06,212 INFO L93 Difference]: Finished difference Result 261 states and 306 transitions. [2022-10-16 11:04:06,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:04:06,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 11:04:06,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:06,214 INFO L225 Difference]: With dead ends: 261 [2022-10-16 11:04:06,214 INFO L226 Difference]: Without dead ends: 259 [2022-10-16 11:04:06,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:04:06,215 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 23 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:06,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 121 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:04:06,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-10-16 11:04:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2022-10-16 11:04:06,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 241 states have (on average 1.2531120331950207) internal successors, (302), 254 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:06,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 302 transitions. [2022-10-16 11:04:06,252 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 302 transitions. Word has length 38 [2022-10-16 11:04:06,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:06,252 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 302 transitions. [2022-10-16 11:04:06,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 302 transitions. [2022-10-16 11:04:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:04:06,253 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:06,253 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:06,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-10-16 11:04:06,254 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:06,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:06,254 INFO L85 PathProgramCache]: Analyzing trace with hash -337198549, now seen corresponding path program 2 times [2022-10-16 11:04:06,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:06,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929878033] [2022-10-16 11:04:06,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:06,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:04:06,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:06,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929878033] [2022-10-16 11:04:06,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929878033] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:06,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204592628] [2022-10-16 11:04:06,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:04:06,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:06,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:06,409 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:06,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 11:04:06,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:04:06,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:06,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:04:06,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:04:06,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:04:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:04:06,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204592628] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:04:06,798 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:04:06,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:04:06,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897048163] [2022-10-16 11:04:06,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:04:06,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:04:06,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:06,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:04:06,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:04:06,800 INFO L87 Difference]: Start difference. First operand 255 states and 302 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:07,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:07,421 INFO L93 Difference]: Finished difference Result 316 states and 363 transitions. [2022-10-16 11:04:07,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:04:07,422 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 11:04:07,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:07,423 INFO L225 Difference]: With dead ends: 316 [2022-10-16 11:04:07,423 INFO L226 Difference]: Without dead ends: 277 [2022-10-16 11:04:07,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 64 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:04:07,425 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 195 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:07,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 478 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:04:07,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2022-10-16 11:04:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 255. [2022-10-16 11:04:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 241 states have (on average 1.2448132780082988) internal successors, (300), 254 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:07,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 300 transitions. [2022-10-16 11:04:07,458 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 300 transitions. Word has length 38 [2022-10-16 11:04:07,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:07,459 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 300 transitions. [2022-10-16 11:04:07,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:07,459 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 300 transitions. [2022-10-16 11:04:07,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 11:04:07,460 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:07,460 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:07,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 11:04:07,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:07,673 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:07,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:07,674 INFO L85 PathProgramCache]: Analyzing trace with hash -640689701, now seen corresponding path program 4 times [2022-10-16 11:04:07,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:07,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619872699] [2022-10-16 11:04:07,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:07,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:08,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:08,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619872699] [2022-10-16 11:04:08,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619872699] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:08,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27323005] [2022-10-16 11:04:08,502 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 11:04:08,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:08,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:08,505 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:08,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 11:04:08,589 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 11:04:08,589 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:08,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 37 conjunts are in the unsatisfiable core [2022-10-16 11:04:08,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:08,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:04:09,151 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 11:04:09,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 11:04:09,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:04:09,360 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 11:04:09,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:04:09,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 11:04:09,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:04:09,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 11:04:10,018 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:10,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:04:11,786 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_872 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (or (< 0 (+ v_ArrVal_872 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_872)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809)) (< (+ v_ArrVal_872 9223372036854775808) 0))) is different from false [2022-10-16 11:04:13,128 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_872 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (or (< (+ v_ArrVal_872 9223372036854775808) 0) (< 0 (+ v_ArrVal_872 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_872)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset| (* 8 |c_ULTIMATE.start_main_#t~post7#1|))))))) is different from false [2022-10-16 11:04:20,058 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:04:20,058 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-10-16 11:04:20,072 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 11:04:20,099 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 11:04:20,150 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_868 Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_868)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 11:04:20,184 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_150| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_150|)) (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_868 Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_150|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_868)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0)) (< (+ 9223372036854775808 .cse0) 0)))))) is different from false [2022-10-16 11:04:20,231 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_150| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_868 Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< |v_ULTIMATE.start_main_~i~0#1_150| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_150|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_868)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 11:04:20,270 INFO L356 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2022-10-16 11:04:20,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 42 [2022-10-16 11:04:20,285 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:04:20,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2022-10-16 11:04:20,303 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:04:20,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-10-16 11:04:20,404 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 33 not checked. [2022-10-16 11:04:20,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27323005] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:04:20,405 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:04:20,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 45 [2022-10-16 11:04:20,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970861003] [2022-10-16 11:04:20,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:04:20,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-10-16 11:04:20,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:20,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-10-16 11:04:20,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1366, Unknown=9, NotChecked=560, Total=2070 [2022-10-16 11:04:20,408 INFO L87 Difference]: Start difference. First operand 255 states and 300 transitions. Second operand has 46 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 46 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:20,823 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (let ((.cse0 (select .cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (and (= .cse0 1) (<= 1 .cse0) (forall ((v_arrayElimArr_3 (Array Int Int)) (|v_ULTIMATE.start_main_~i~0#1_150| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_868 Int)) (let ((.cse2 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< |v_ULTIMATE.start_main_~i~0#1_150| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_150|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_868)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse2)) (< (+ 9223372036854775808 .cse2) 0)))) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_~i~0#1|) (= 2 |c_ULTIMATE.start_main_~i~0#1|) (<= |c_ULTIMATE.start_main_~i~0#1| 2)))) is different from false [2022-10-16 11:04:22,856 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (select .cse1 .cse2))) (and (<= 2 |c_ULTIMATE.start_main_#t~post6#1|) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 1 .cse0) (= .cse0 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_150| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_150|)) (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_868 Int)) (let ((.cse3 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_150|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_868)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2) 9223372036854775809 .cse3)) (< (+ 9223372036854775808 .cse3) 0))))))))) is different from false [2022-10-16 11:04:24,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:24,584 INFO L93 Difference]: Finished difference Result 258 states and 301 transitions. [2022-10-16 11:04:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 11:04:24,585 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 46 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 11:04:24,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:24,587 INFO L225 Difference]: With dead ends: 258 [2022-10-16 11:04:24,587 INFO L226 Difference]: Without dead ends: 257 [2022-10-16 11:04:24,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=274, Invalid=2403, Unknown=11, NotChecked=972, Total=3660 [2022-10-16 11:04:24,588 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 123 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 1590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 528 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:24,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 976 Invalid, 1590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1018 Invalid, 0 Unknown, 528 Unchecked, 1.0s Time] [2022-10-16 11:04:24,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-10-16 11:04:24,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2022-10-16 11:04:24,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 241 states have (on average 1.2406639004149378) internal successors, (299), 254 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:24,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 299 transitions. [2022-10-16 11:04:24,621 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 299 transitions. Word has length 38 [2022-10-16 11:04:24,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:24,622 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 299 transitions. [2022-10-16 11:04:24,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.1555555555555554) internal successors, (97), 46 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:24,622 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 299 transitions. [2022-10-16 11:04:24,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 11:04:24,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:24,623 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:24,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 11:04:24,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:24,838 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:24,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:24,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1793130961, now seen corresponding path program 5 times [2022-10-16 11:04:24,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:24,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579749470] [2022-10-16 11:04:24,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:24,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:25,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:25,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579749470] [2022-10-16 11:04:25,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579749470] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:25,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760229946] [2022-10-16 11:04:25,225 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 11:04:25,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:25,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:25,227 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:25,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 11:04:25,333 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 11:04:25,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:25,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 11:04:25,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:25,706 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:25,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:04:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:26,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760229946] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:04:26,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:04:26,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 28 [2022-10-16 11:04:26,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319568509] [2022-10-16 11:04:26,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:04:26,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 11:04:26,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:26,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 11:04:26,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-10-16 11:04:26,101 INFO L87 Difference]: Start difference. First operand 255 states and 299 transitions. Second operand has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:27,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:27,328 INFO L93 Difference]: Finished difference Result 381 states and 430 transitions. [2022-10-16 11:04:27,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 11:04:27,328 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 11:04:27,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:27,333 INFO L225 Difference]: With dead ends: 381 [2022-10-16 11:04:27,333 INFO L226 Difference]: Without dead ends: 311 [2022-10-16 11:04:27,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 54 SyntacticMatches, 13 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=403, Invalid=1949, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 11:04:27,335 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 344 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:27,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 479 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 11:04:27,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2022-10-16 11:04:27,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 239. [2022-10-16 11:04:27,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 225 states have (on average 1.2355555555555555) internal successors, (278), 238 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:27,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 278 transitions. [2022-10-16 11:04:27,379 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 278 transitions. Word has length 39 [2022-10-16 11:04:27,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:27,379 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 278 transitions. [2022-10-16 11:04:27,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:27,379 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 278 transitions. [2022-10-16 11:04:27,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 11:04:27,380 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:27,380 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:27,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-10-16 11:04:27,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-10-16 11:04:27,594 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:27,595 INFO L85 PathProgramCache]: Analyzing trace with hash -392648735, now seen corresponding path program 2 times [2022-10-16 11:04:27,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:27,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358446337] [2022-10-16 11:04:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:27,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:27,842 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 11:04:27,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:27,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358446337] [2022-10-16 11:04:27,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358446337] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:27,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387147407] [2022-10-16 11:04:27,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:04:27,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:27,844 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:27,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 11:04:27,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:04:27,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:27,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:04:27,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 11:04:28,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:04:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 11:04:28,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387147407] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:04:28,149 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:04:28,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-10-16 11:04:28,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488250243] [2022-10-16 11:04:28,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:04:28,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:04:28,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:28,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:04:28,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:04:28,150 INFO L87 Difference]: Start difference. First operand 239 states and 278 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:28,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:28,915 INFO L93 Difference]: Finished difference Result 344 states and 388 transitions. [2022-10-16 11:04:28,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 11:04:28,916 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 11:04:28,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:28,918 INFO L225 Difference]: With dead ends: 344 [2022-10-16 11:04:28,918 INFO L226 Difference]: Without dead ends: 300 [2022-10-16 11:04:28,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=236, Invalid=820, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 11:04:28,919 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 373 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:28,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 271 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:04:28,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2022-10-16 11:04:28,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 254. [2022-10-16 11:04:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 241 states have (on average 1.2116182572614107) internal successors, (292), 253 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:28,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 292 transitions. [2022-10-16 11:04:28,954 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 292 transitions. Word has length 40 [2022-10-16 11:04:28,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:28,954 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 292 transitions. [2022-10-16 11:04:28,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:28,955 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 292 transitions. [2022-10-16 11:04:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 11:04:28,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:28,956 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 11:04:28,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 11:04:29,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 11:04:29,169 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1343615737, now seen corresponding path program 1 times [2022-10-16 11:04:29,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:29,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126195756] [2022-10-16 11:04:29,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:29,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:04:29,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:29,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126195756] [2022-10-16 11:04:29,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126195756] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:29,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638729414] [2022-10-16 11:04:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:29,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:29,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:29,330 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:29,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 11:04:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:29,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:04:29,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:04:29,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:04:29,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:04:29,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638729414] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:04:29,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:04:29,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:04:29,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632367748] [2022-10-16 11:04:29,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:04:29,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:04:29,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:04:29,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:04:29,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:04:29,806 INFO L87 Difference]: Start difference. First operand 254 states and 292 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:30,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:04:30,342 INFO L93 Difference]: Finished difference Result 282 states and 316 transitions. [2022-10-16 11:04:30,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 11:04:30,344 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-10-16 11:04:30,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:04:30,345 INFO L225 Difference]: With dead ends: 282 [2022-10-16 11:04:30,345 INFO L226 Difference]: Without dead ends: 267 [2022-10-16 11:04:30,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-16 11:04:30,346 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 123 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:04:30,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 286 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:04:30,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-10-16 11:04:30,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 258. [2022-10-16 11:04:30,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 245 states have (on average 1.2081632653061225) internal successors, (296), 257 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 296 transitions. [2022-10-16 11:04:30,382 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 296 transitions. Word has length 41 [2022-10-16 11:04:30,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:04:30,382 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 296 transitions. [2022-10-16 11:04:30,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:04:30,383 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 296 transitions. [2022-10-16 11:04:30,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 11:04:30,384 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:04:30,384 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:04:30,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 11:04:30,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:30,598 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:04:30,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:04:30,599 INFO L85 PathProgramCache]: Analyzing trace with hash 620096039, now seen corresponding path program 3 times [2022-10-16 11:04:30,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:04:30,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242614556] [2022-10-16 11:04:30,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:04:30,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:04:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:04:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:32,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:04:32,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242614556] [2022-10-16 11:04:32,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242614556] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:04:32,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453800152] [2022-10-16 11:04:32,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:04:32,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:04:32,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:04:32,588 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:04:32,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 11:04:32,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 11:04:32,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:04:32,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 45 conjunts are in the unsatisfiable core [2022-10-16 11:04:32,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:04:32,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:04:32,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:04:33,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:04:33,833 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-10-16 11:04:33,833 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 43 [2022-10-16 11:04:34,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:04:34,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:04:34,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 34 [2022-10-16 11:04:35,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:04:35,136 INFO L356 Elim1Store]: treesize reduction 34, result has 49.3 percent of original size [2022-10-16 11:04:35,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 64 [2022-10-16 11:04:36,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2022-10-16 11:04:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:04:36,574 INFO L328 TraceCheckSpWp]: Computing backward predicates...