/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-crafted/zero_sum_const4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:00:18,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:00:18,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:00:18,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:00:18,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:00:18,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:00:18,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:00:18,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:00:18,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:00:18,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:00:18,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:00:18,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:00:18,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:00:18,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:00:18,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:00:18,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:00:18,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:00:18,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:00:18,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:00:18,295 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:00:18,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:00:18,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:00:18,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:00:18,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:00:18,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:00:18,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:00:18,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:00:18,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:00:18,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:00:18,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:00:18,333 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:00:18,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:00:18,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:00:18,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:00:18,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:00:18,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:00:18,340 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 10:00:18,393 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:00:18,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:00:18,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:00:18,396 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:00:18,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:00:18,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:00:18,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:00:18,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:00:18,401 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:00:18,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:00:18,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:00:18,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:00:18,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:00:18,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:00:18,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:00:18,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:00:18,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:00:18,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:00:18,405 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:00:18,405 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:00:18,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:00:18,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:00:18,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:00:18,406 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:00:18,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:00:18,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:00:18,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:00:18,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:00:18,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:00:18,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:00:18,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:00:18,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:00:18,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:00:18,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:00:18,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:00:18,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:00:18,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:00:18,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:00:18,836 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:00:18,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_const4.c [2022-10-16 10:00:18,933 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b39f36c78/3382b166cd1541e38205908fbd769d3e/FLAGdcaeb7435 [2022-10-16 10:00:19,654 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:00:19,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const4.c [2022-10-16 10:00:19,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b39f36c78/3382b166cd1541e38205908fbd769d3e/FLAGdcaeb7435 [2022-10-16 10:00:20,000 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b39f36c78/3382b166cd1541e38205908fbd769d3e [2022-10-16 10:00:20,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:00:20,009 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:00:20,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:00:20,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:00:20,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:00:20,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d00148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20, skipping insertion in model container [2022-10-16 10:00:20,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:00:20,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:00:20,208 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-crafted/zero_sum_const4.c[406,419] [2022-10-16 10:00:20,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:00:20,243 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:00:20,255 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-crafted/zero_sum_const4.c[406,419] [2022-10-16 10:00:20,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:00:20,282 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:00:20,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20 WrapperNode [2022-10-16 10:00:20,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:00:20,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:00:20,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:00:20,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:00:20,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,330 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2022-10-16 10:00:20,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:00:20,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:00:20,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:00:20,332 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:00:20,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:00:20,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:00:20,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:00:20,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:00:20,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (1/1) ... [2022-10-16 10:00:20,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:00:20,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:20,410 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 10:00:20,427 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 10:00:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:00:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:00:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:00:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:00:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:00:20,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:00:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:00:20,545 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:00:20,547 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:00:21,081 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:00:21,105 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:00:21,105 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-16 10:00:21,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:00:21 BoogieIcfgContainer [2022-10-16 10:00:21,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:00:21,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:00:21,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:00:21,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:00:21,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:00:20" (1/3) ... [2022-10-16 10:00:21,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b90c0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:00:21, skipping insertion in model container [2022-10-16 10:00:21,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:00:20" (2/3) ... [2022-10-16 10:00:21,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b90c0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:00:21, skipping insertion in model container [2022-10-16 10:00:21,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:00:21" (3/3) ... [2022-10-16 10:00:21,122 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_const4.c [2022-10-16 10:00:21,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:00:21,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-10-16 10:00:21,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:00:21,223 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;@7e809213, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:00:21,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-10-16 10:00:21,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 70 states have (on average 1.7714285714285714) internal successors, (124), 104 states have internal predecessors, (124), 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 10:00:21,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 10:00:21,237 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:21,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 10:00:21,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:21,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:21,245 INFO L85 PathProgramCache]: Analyzing trace with hash 889512652, now seen corresponding path program 1 times [2022-10-16 10:00:21,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:21,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638495606] [2022-10-16 10:00:21,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:21,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:21,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:21,525 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 10:00:21,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:21,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638495606] [2022-10-16 10:00:21,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638495606] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:00:21,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:00:21,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:00:21,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505305679] [2022-10-16 10:00:21,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:00:21,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:00:21,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:21,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:00:21,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:00:21,577 INFO L87 Difference]: Start difference. First operand has 105 states, 70 states have (on average 1.7714285714285714) internal successors, (124), 104 states have internal predecessors, (124), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 10:00:21,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:21,784 INFO L93 Difference]: Finished difference Result 303 states and 356 transitions. [2022-10-16 10:00:21,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:00:21,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2022-10-16 10:00:21,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:21,801 INFO L225 Difference]: With dead ends: 303 [2022-10-16 10:00:21,801 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 10:00:21,806 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 10:00:21,811 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 91 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:21,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 241 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 10:00:21,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 101. [2022-10-16 10:00:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 67 states have (on average 1.6417910447761195) internal successors, (110), 100 states have internal predecessors, (110), 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 10:00:21,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2022-10-16 10:00:21,864 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 6 [2022-10-16 10:00:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:21,864 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2022-10-16 10:00:21,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 10:00:21,865 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2022-10-16 10:00:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:00:21,866 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:21,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:21,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:00:21,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:21,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:21,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1805037039, now seen corresponding path program 1 times [2022-10-16 10:00:21,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:21,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718773189] [2022-10-16 10:00:21,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:21,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:21,965 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 10:00:21,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:21,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718773189] [2022-10-16 10:00:21,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718773189] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:00:21,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:00:21,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:00:21,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432127247] [2022-10-16 10:00:21,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:00:21,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:00:21,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:21,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:00:21,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:00:21,973 INFO L87 Difference]: Start difference. First operand 101 states and 110 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:00:22,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:22,088 INFO L93 Difference]: Finished difference Result 189 states and 205 transitions. [2022-10-16 10:00:22,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:00:22,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 10:00:22,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:22,094 INFO L225 Difference]: With dead ends: 189 [2022-10-16 10:00:22,094 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 10:00:22,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:00:22,100 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 3 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:22,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 162 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 10:00:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-10-16 10:00:22,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 67 states have (on average 1.626865671641791) internal successors, (109), 100 states have internal predecessors, (109), 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 10:00:22,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2022-10-16 10:00:22,124 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 7 [2022-10-16 10:00:22,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:22,124 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2022-10-16 10:00:22,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:00:22,125 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2022-10-16 10:00:22,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:00:22,126 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:22,128 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:22,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:00:22,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:22,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:22,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1894413816, now seen corresponding path program 1 times [2022-10-16 10:00:22,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:22,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661505496] [2022-10-16 10:00:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:22,315 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 10:00:22,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:22,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661505496] [2022-10-16 10:00:22,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661505496] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:22,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543656658] [2022-10-16 10:00:22,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:22,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:22,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:22,322 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 10:00:22,325 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 10:00:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:22,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:00:22,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:22,449 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 10:00:22,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:22,499 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 10:00:22,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543656658] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:22,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:22,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:00:22,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125585737] [2022-10-16 10:00:22,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:22,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:00:22,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:00:22,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:00:22,503 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 10:00:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:22,760 INFO L93 Difference]: Finished difference Result 207 states and 227 transitions. [2022-10-16 10:00:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:00:22,760 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 10 [2022-10-16 10:00:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:22,764 INFO L225 Difference]: With dead ends: 207 [2022-10-16 10:00:22,764 INFO L226 Difference]: Without dead ends: 206 [2022-10-16 10:00:22,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 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 10:00:22,766 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 187 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:22,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 415 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:00:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-16 10:00:22,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 112. [2022-10-16 10:00:22,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 78 states have (on average 1.6025641025641026) internal successors, (125), 111 states have internal predecessors, (125), 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 10:00:22,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2022-10-16 10:00:22,780 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 10 [2022-10-16 10:00:22,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:22,781 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2022-10-16 10:00:22,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 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 10:00:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2022-10-16 10:00:22,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:00:22,782 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:22,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:22,822 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 10:00:22,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:23,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:23,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:23,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1402662451, now seen corresponding path program 1 times [2022-10-16 10:00:23,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:23,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438650095] [2022-10-16 10:00:23,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:23,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:23,167 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 10:00:23,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:23,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438650095] [2022-10-16 10:00:23,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438650095] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:23,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415386434] [2022-10-16 10:00:23,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:23,170 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 10:00:23,195 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 10:00:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:23,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:00:23,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:23,293 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 10:00:23,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:23,329 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 10:00:23,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415386434] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:23,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:23,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:00:23,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323854601] [2022-10-16 10:00:23,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:23,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:00:23,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:23,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:00:23,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:00:23,332 INFO L87 Difference]: Start difference. First operand 112 states and 125 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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 10:00:23,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:23,498 INFO L93 Difference]: Finished difference Result 201 states and 220 transitions. [2022-10-16 10:00:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:00:23,499 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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 11 [2022-10-16 10:00:23,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:23,500 INFO L225 Difference]: With dead ends: 201 [2022-10-16 10:00:23,500 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 10:00:23,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:00:23,502 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 79 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:23,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 355 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:23,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 10:00:23,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2022-10-16 10:00:23,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 78 states have (on average 1.5897435897435896) internal successors, (124), 111 states have internal predecessors, (124), 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 10:00:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2022-10-16 10:00:23,510 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 11 [2022-10-16 10:00:23,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:23,511 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2022-10-16 10:00:23,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 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 10:00:23,511 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2022-10-16 10:00:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:00:23,512 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:23,512 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:00:23,551 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 10:00:23,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:00:23,726 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:23,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:23,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1402713897, now seen corresponding path program 1 times [2022-10-16 10:00:23,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:23,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143894422] [2022-10-16 10:00:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:23,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:23,830 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 10:00:23,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:23,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143894422] [2022-10-16 10:00:23,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143894422] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:23,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964942582] [2022-10-16 10:00:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:23,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:23,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:23,840 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 10:00:23,849 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 10:00:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:23,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:00:23,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:23,916 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 10:00:23,917 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:00:23,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964942582] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:00:23,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:00:23,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:00:23,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306524591] [2022-10-16 10:00:23,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:00:23,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:00:23,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:23,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:00:23,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:00:23,919 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 10:00:24,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:24,034 INFO L93 Difference]: Finished difference Result 199 states and 218 transitions. [2022-10-16 10:00:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:00:24,035 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-10-16 10:00:24,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:24,036 INFO L225 Difference]: With dead ends: 199 [2022-10-16 10:00:24,037 INFO L226 Difference]: Without dead ends: 198 [2022-10-16 10:00:24,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 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 10:00:24,038 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 89 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:24,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 262 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:24,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-10-16 10:00:24,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 111. [2022-10-16 10:00:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 78 states have (on average 1.5512820512820513) internal successors, (121), 110 states have internal predecessors, (121), 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 10:00:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2022-10-16 10:00:24,047 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 11 [2022-10-16 10:00:24,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:24,047 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2022-10-16 10:00:24,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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 10:00:24,048 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2022-10-16 10:00:24,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:00:24,048 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:24,048 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:24,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-16 10:00:24,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:24,263 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash 591228023, now seen corresponding path program 2 times [2022-10-16 10:00:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:24,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034578538] [2022-10-16 10:00:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:24,739 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 10:00:24,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:24,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034578538] [2022-10-16 10:00:24,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034578538] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:24,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525129608] [2022-10-16 10:00:24,740 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:00:24,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:24,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:24,742 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 10:00:24,765 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 10:00:24,798 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:00:24,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:00:24,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:00:24,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:24,868 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 10:00:24,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:00:24,969 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 10:00:25,041 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 15 treesize of output 7 [2022-10-16 10:00:25,055 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 10:00:25,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:27,196 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_55| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_55|)) (forall ((v_ArrVal_54 Int)) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_55| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 2147483648)))) is different from false [2022-10-16 10:00:33,108 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 23 treesize of output 21 [2022-10-16 10:00:33,117 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 64 treesize of output 62 [2022-10-16 10:00:33,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 10:00:33,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525129608] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:33,202 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:33,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2022-10-16 10:00:33,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242497634] [2022-10-16 10:00:33,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:33,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:00:33,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:33,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:00:33,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=336, Unknown=5, NotChecked=38, Total=462 [2022-10-16 10:00:33,205 INFO L87 Difference]: Start difference. First operand 111 states and 121 transitions. Second operand has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 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 10:00:35,235 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 .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_55| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_55|)) (forall ((v_ArrVal_54 Int)) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_55| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 2147483648)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:00:37,242 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) (forall ((|v_ULTIMATE.start_main_~i~0#1_55| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_55|)) (forall ((v_ArrVal_54 Int)) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_55| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 2147483648)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:00:38,060 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_55| Int) (v_ArrVal_54 Int)) (or (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_55| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|)) 2147483648) (< |v_ULTIMATE.start_main_~i~0#1_55| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))) 2147483648) (= .cse1 0) (< |c_ULTIMATE.start_main_~sum~0#1| 2147483647))) is different from false [2022-10-16 10:00:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:38,497 INFO L93 Difference]: Finished difference Result 160 states and 178 transitions. [2022-10-16 10:00:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:00:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 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 15 [2022-10-16 10:00:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:38,499 INFO L225 Difference]: With dead ends: 160 [2022-10-16 10:00:38,499 INFO L226 Difference]: Without dead ends: 158 [2022-10-16 10:00:38,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=151, Invalid=559, Unknown=8, NotChecked=212, Total=930 [2022-10-16 10:00:38,501 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 93 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 245 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:38,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 423 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 659 Invalid, 0 Unknown, 245 Unchecked, 0.5s Time] [2022-10-16 10:00:38,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-10-16 10:00:38,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 114. [2022-10-16 10:00:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 81 states have (on average 1.5432098765432098) internal successors, (125), 113 states have internal predecessors, (125), 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 10:00:38,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2022-10-16 10:00:38,510 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 15 [2022-10-16 10:00:38,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:38,510 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2022-10-16 10:00:38,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 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 10:00:38,511 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2022-10-16 10:00:38,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:00:38,511 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:38,511 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:38,555 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 10:00:38,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:38,725 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:38,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:38,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1234401639, now seen corresponding path program 1 times [2022-10-16 10:00:38,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:38,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245843534] [2022-10-16 10:00:38,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:38,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:38,777 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:00:38,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:38,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245843534] [2022-10-16 10:00:38,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245843534] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:00:38,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:00:38,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:00:38,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404127641] [2022-10-16 10:00:38,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:00:38,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:00:38,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:38,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:00:38,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:00:38,780 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 10:00:38,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:38,866 INFO L93 Difference]: Finished difference Result 266 states and 289 transitions. [2022-10-16 10:00:38,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:00:38,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 17 [2022-10-16 10:00:38,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:38,868 INFO L225 Difference]: With dead ends: 266 [2022-10-16 10:00:38,868 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 10:00:38,869 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 10:00:38,870 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 170 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:38,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 136 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:38,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 10:00:38,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 120. [2022-10-16 10:00:38,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 87 states have (on average 1.4942528735632183) internal successors, (130), 119 states have internal predecessors, (130), 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 10:00:38,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2022-10-16 10:00:38,879 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 17 [2022-10-16 10:00:38,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:38,880 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2022-10-16 10:00:38,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 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 10:00:38,880 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2022-10-16 10:00:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:00:38,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:38,881 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:38,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:00:38,881 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:38,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:38,882 INFO L85 PathProgramCache]: Analyzing trace with hash -386783092, now seen corresponding path program 1 times [2022-10-16 10:00:38,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:38,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253607802] [2022-10-16 10:00:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:00:38,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:38,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253607802] [2022-10-16 10:00:38,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253607802] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:00:38,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:00:38,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:00:38,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125648260] [2022-10-16 10:00:38,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:00:38,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:00:38,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:38,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:00:38,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:00:38,935 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 10:00:39,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:39,023 INFO L93 Difference]: Finished difference Result 189 states and 199 transitions. [2022-10-16 10:00:39,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:00:39,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 10:00:39,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:39,025 INFO L225 Difference]: With dead ends: 189 [2022-10-16 10:00:39,025 INFO L226 Difference]: Without dead ends: 187 [2022-10-16 10:00:39,025 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 10:00:39,026 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 69 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:39,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 224 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:39,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-10-16 10:00:39,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 123. [2022-10-16 10:00:39,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 90 states have (on average 1.4777777777777779) internal successors, (133), 122 states have internal predecessors, (133), 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 10:00:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2022-10-16 10:00:39,035 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 18 [2022-10-16 10:00:39,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:39,035 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2022-10-16 10:00:39,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 10:00:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2022-10-16 10:00:39,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:00:39,037 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:39,037 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:39,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:00:39,037 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:39,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:39,038 INFO L85 PathProgramCache]: Analyzing trace with hash 742231581, now seen corresponding path program 1 times [2022-10-16 10:00:39,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:39,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118373780] [2022-10-16 10:00:39,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:39,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:39,708 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 10:00:39,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:39,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118373780] [2022-10-16 10:00:39,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118373780] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:39,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243629527] [2022-10-16 10:00:39,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:39,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:39,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:39,713 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 10:00:39,722 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 10:00:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:39,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:00:39,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:39,811 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 10:00:39,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:00:39,911 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 10:00:40,216 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:00:40,216 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 1 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:00:40,242 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 10:00:40,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:40,690 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 46 treesize of output 42 [2022-10-16 10:00:40,707 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:00:40,707 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 696 treesize of output 648 [2022-10-16 10:00:41,040 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 10:00:41,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243629527] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:41,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:41,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 10:00:41,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985827062] [2022-10-16 10:00:41,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:41,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:00:41,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:41,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:00:41,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:00:41,043 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 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 10:00:42,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:42,228 INFO L93 Difference]: Finished difference Result 158 states and 171 transitions. [2022-10-16 10:00:42,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:00:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 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 21 [2022-10-16 10:00:42,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:42,232 INFO L225 Difference]: With dead ends: 158 [2022-10-16 10:00:42,232 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 10:00:42,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=352, Invalid=2000, Unknown=0, NotChecked=0, Total=2352 [2022-10-16 10:00:42,238 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 128 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:42,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 723 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 883 Invalid, 0 Unknown, 260 Unchecked, 0.6s Time] [2022-10-16 10:00:42,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 10:00:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 132. [2022-10-16 10:00:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 99 states have (on average 1.4444444444444444) internal successors, (143), 131 states have internal predecessors, (143), 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 10:00:42,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2022-10-16 10:00:42,252 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 21 [2022-10-16 10:00:42,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:42,252 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2022-10-16 10:00:42,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 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 10:00:42,254 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2022-10-16 10:00:42,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:00:42,255 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:42,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:42,295 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 10:00:42,471 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 10:00:42,472 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:42,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1534342596, now seen corresponding path program 1 times [2022-10-16 10:00:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:42,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221567968] [2022-10-16 10:00:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:42,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:42,832 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 10:00:42,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:42,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221567968] [2022-10-16 10:00:42,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221567968] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:42,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553646173] [2022-10-16 10:00:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:42,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:42,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:42,835 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 10:00:42,849 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 10:00:42,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:42,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:00:42,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:42,937 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 10:00:43,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:00:43,065 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 10:00:43,350 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:00:43,350 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 1 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:00:43,375 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 10:00:43,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:43,773 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 47 treesize of output 43 [2022-10-16 10:00:43,788 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:00:43,789 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 728 treesize of output 680 [2022-10-16 10:00:44,228 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 10:00:44,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553646173] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:44,228 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:44,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 33 [2022-10-16 10:00:44,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194900601] [2022-10-16 10:00:44,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:44,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:00:44,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:44,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:00:44,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=972, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:00:44,231 INFO L87 Difference]: Start difference. First operand 132 states and 143 transitions. Second operand has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 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 10:00:45,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:45,836 INFO L93 Difference]: Finished difference Result 249 states and 265 transitions. [2022-10-16 10:00:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 10:00:45,837 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 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) Word has length 22 [2022-10-16 10:00:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:45,839 INFO L225 Difference]: With dead ends: 249 [2022-10-16 10:00:45,839 INFO L226 Difference]: Without dead ends: 248 [2022-10-16 10:00:45,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=438, Invalid=2318, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:00:45,841 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 398 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 1459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 291 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:45,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 964 Invalid, 1459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1083 Invalid, 0 Unknown, 291 Unchecked, 0.7s Time] [2022-10-16 10:00:45,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-10-16 10:00:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 135. [2022-10-16 10:00:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 102 states have (on average 1.4509803921568627) internal successors, (148), 134 states have internal predecessors, (148), 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 10:00:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2022-10-16 10:00:45,852 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 22 [2022-10-16 10:00:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:45,853 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2022-10-16 10:00:45,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 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 10:00:45,853 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2022-10-16 10:00:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:00:45,854 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:45,854 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 10:00:45,888 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 10:00:46,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:46,069 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:46,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:46,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1716489148, now seen corresponding path program 2 times [2022-10-16 10:00:46,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:46,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034507649] [2022-10-16 10:00:46,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:46,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:46,211 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 10:00:46,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:46,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034507649] [2022-10-16 10:00:46,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034507649] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:46,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808832010] [2022-10-16 10:00:46,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:00:46,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:46,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:46,214 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 10:00:46,222 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 10:00:46,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:00:46,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:00:46,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:00:46,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:46,317 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 10:00:46,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:46,360 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 10:00:46,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808832010] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:46,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:46,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:00:46,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953205318] [2022-10-16 10:00:46,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:46,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:00:46,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:46,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:00:46,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:00:46,363 INFO L87 Difference]: Start difference. First operand 135 states and 148 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 10:00:46,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:46,645 INFO L93 Difference]: Finished difference Result 208 states and 224 transitions. [2022-10-16 10:00:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:00:46,646 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 22 [2022-10-16 10:00:46,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:46,652 INFO L225 Difference]: With dead ends: 208 [2022-10-16 10:00:46,652 INFO L226 Difference]: Without dead ends: 207 [2022-10-16 10:00:46,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 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 10:00:46,654 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 493 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:46,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 316 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:46,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-10-16 10:00:46,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 132. [2022-10-16 10:00:46,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 100 states have (on average 1.45) internal successors, (145), 131 states have internal predecessors, (145), 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 10:00:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 145 transitions. [2022-10-16 10:00:46,672 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 145 transitions. Word has length 22 [2022-10-16 10:00:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:46,673 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 145 transitions. [2022-10-16 10:00:46,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 10:00:46,673 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 145 transitions. [2022-10-16 10:00:46,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:00:46,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:46,680 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:46,718 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 10:00:46,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:46,887 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:46,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:46,888 INFO L85 PathProgramCache]: Analyzing trace with hash 319932813, now seen corresponding path program 1 times [2022-10-16 10:00:46,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:46,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452167893] [2022-10-16 10:00:46,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:46,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:00:46,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:46,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452167893] [2022-10-16 10:00:46,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452167893] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:46,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186539507] [2022-10-16 10:00:46,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:46,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:46,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:46,958 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 10:00:46,972 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 10:00:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:47,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:00:47,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:47,073 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:00:47,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:47,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:00:47,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186539507] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:47,112 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:47,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 10:00:47,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313724135] [2022-10-16 10:00:47,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:47,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:00:47,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:47,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:00:47,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:00:47,115 INFO L87 Difference]: Start difference. First operand 132 states and 145 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 10:00:47,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:47,330 INFO L93 Difference]: Finished difference Result 285 states and 303 transitions. [2022-10-16 10:00:47,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:00:47,331 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 10:00:47,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:47,332 INFO L225 Difference]: With dead ends: 285 [2022-10-16 10:00:47,333 INFO L226 Difference]: Without dead ends: 202 [2022-10-16 10:00:47,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:00:47,334 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 308 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:47,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 462 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:00:47,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-16 10:00:47,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 132. [2022-10-16 10:00:47,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 100 states have (on average 1.43) internal successors, (143), 131 states have internal predecessors, (143), 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 10:00:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2022-10-16 10:00:47,345 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 23 [2022-10-16 10:00:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:47,345 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2022-10-16 10:00:47,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 10:00:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2022-10-16 10:00:47,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:00:47,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:47,346 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:47,385 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 10:00:47,562 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,SelfDestructingSolverStorable11 [2022-10-16 10:00:47,562 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:47,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:47,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1329454374, now seen corresponding path program 1 times [2022-10-16 10:00:47,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:47,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905456887] [2022-10-16 10:00:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:47,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:47,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:47,625 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 10:00:47,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:47,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905456887] [2022-10-16 10:00:47,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905456887] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:47,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384364381] [2022-10-16 10:00:47,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:47,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:47,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:47,628 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 10:00:47,646 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 10:00:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:47,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:00:47,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:47,712 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 10:00:47,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:47,750 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 10:00:47,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384364381] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:47,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:47,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:00:47,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804618775] [2022-10-16 10:00:47,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:47,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:00:47,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:00:47,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:00:47,752 INFO L87 Difference]: Start difference. First operand 132 states and 143 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 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 10:00:47,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:47,959 INFO L93 Difference]: Finished difference Result 222 states and 236 transitions. [2022-10-16 10:00:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:00:47,959 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 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 24 [2022-10-16 10:00:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:47,961 INFO L225 Difference]: With dead ends: 222 [2022-10-16 10:00:47,961 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 10:00:47,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 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 10:00:47,962 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 161 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:47,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 367 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:47,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 10:00:47,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 146. [2022-10-16 10:00:47,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 114 states have (on average 1.4473684210526316) internal successors, (165), 145 states have internal predecessors, (165), 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 10:00:47,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 165 transitions. [2022-10-16 10:00:47,974 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 165 transitions. Word has length 24 [2022-10-16 10:00:47,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:47,974 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 165 transitions. [2022-10-16 10:00:47,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 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 10:00:47,974 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 165 transitions. [2022-10-16 10:00:47,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:00:47,975 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:47,975 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:48,016 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 10:00:48,188 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,SelfDestructingSolverStorable12 [2022-10-16 10:00:48,189 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:48,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1736587295, now seen corresponding path program 1 times [2022-10-16 10:00:48,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:48,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565463728] [2022-10-16 10:00:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:48,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:48,248 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 10:00:48,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:48,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565463728] [2022-10-16 10:00:48,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565463728] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:48,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42969557] [2022-10-16 10:00:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:48,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:48,250 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 10:00:48,272 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 10:00:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:48,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:00:48,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:48,329 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 10:00:48,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:00:48,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42969557] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:00:48,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:00:48,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:00:48,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679960592] [2022-10-16 10:00:48,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:00:48,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:00:48,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:48,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:00:48,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:00:48,331 INFO L87 Difference]: Start difference. First operand 146 states and 165 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 10:00:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:48,447 INFO L93 Difference]: Finished difference Result 210 states and 229 transitions. [2022-10-16 10:00:48,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:00:48,448 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 25 [2022-10-16 10:00:48,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:48,449 INFO L225 Difference]: With dead ends: 210 [2022-10-16 10:00:48,449 INFO L226 Difference]: Without dead ends: 209 [2022-10-16 10:00:48,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 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 10:00:48,450 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 79 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:48,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 347 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:00:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-16 10:00:48,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 145. [2022-10-16 10:00:48,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 114 states have (on average 1.4210526315789473) internal successors, (162), 144 states have internal predecessors, (162), 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 10:00:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 162 transitions. [2022-10-16 10:00:48,462 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 162 transitions. Word has length 25 [2022-10-16 10:00:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:48,462 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 162 transitions. [2022-10-16 10:00:48,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 10:00:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 162 transitions. [2022-10-16 10:00:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:00:48,463 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:48,463 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:48,494 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 10:00:48,677 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,SelfDestructingSolverStorable13 [2022-10-16 10:00:48,677 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:48,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1881889603, now seen corresponding path program 2 times [2022-10-16 10:00:48,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:48,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950350804] [2022-10-16 10:00:48,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:48,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:48,829 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 10:00:48,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:48,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950350804] [2022-10-16 10:00:48,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950350804] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349011397] [2022-10-16 10:00:48,830 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:00:48,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:48,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:48,831 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 10:00:48,856 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 10:00:48,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:00:48,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:00:48,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:00:48,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:49,031 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 10:00:49,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:49,147 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 10:00:49,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349011397] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:00:49,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:00:49,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:00:49,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833170549] [2022-10-16 10:00:49,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:00:49,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:00:49,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:00:49,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:00:49,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:00:49,150 INFO L87 Difference]: Start difference. First operand 145 states and 162 transitions. Second operand has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 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 10:00:49,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:00:49,567 INFO L93 Difference]: Finished difference Result 472 states and 508 transitions. [2022-10-16 10:00:49,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:00:49,567 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 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 27 [2022-10-16 10:00:49,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:00:49,570 INFO L225 Difference]: With dead ends: 472 [2022-10-16 10:00:49,570 INFO L226 Difference]: Without dead ends: 370 [2022-10-16 10:00:49,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=713, Unknown=0, NotChecked=0, Total=870 [2022-10-16 10:00:49,571 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 517 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:00:49,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 977 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:00:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-10-16 10:00:49,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 159. [2022-10-16 10:00:49,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 128 states have (on average 1.375) internal successors, (176), 158 states have internal predecessors, (176), 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 10:00:49,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 176 transitions. [2022-10-16 10:00:49,585 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 176 transitions. Word has length 27 [2022-10-16 10:00:49,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:00:49,586 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 176 transitions. [2022-10-16 10:00:49,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 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 10:00:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 176 transitions. [2022-10-16 10:00:49,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:00:49,587 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:00:49,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:00:49,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 10:00:49,802 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,SelfDestructingSolverStorable14 [2022-10-16 10:00:49,802 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:00:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:00:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash 314631475, now seen corresponding path program 2 times [2022-10-16 10:00:49,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:00:49,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955835612] [2022-10-16 10:00:49,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:00:49,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:00:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:00:50,383 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:00:50,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:00:50,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955835612] [2022-10-16 10:00:50,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955835612] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:00:50,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568590332] [2022-10-16 10:00:50,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:00:50,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:00:50,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:00:50,385 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 10:00:50,386 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 10:00:50,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:00:50,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:00:50,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 10:00:50,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:00:50,466 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 10:00:50,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:00:50,572 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 10:00:50,759 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 15 treesize of output 7 [2022-10-16 10:00:50,783 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 10:00:50,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:00:53,021 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)) (forall ((v_ArrVal_186 Int)) (< 0 (+ (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_186) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) is different from false [2022-10-16 10:01:00,259 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 23 treesize of output 21 [2022-10-16 10:01:00,264 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 142 treesize of output 138 [2022-10-16 10:01:00,335 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 2 not checked. [2022-10-16 10:01:00,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568590332] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:01:00,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:01:00,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 33 [2022-10-16 10:01:00,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808617170] [2022-10-16 10:01:00,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:01:00,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:01:00,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:01:00,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:01:00,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=918, Unknown=11, NotChecked=62, Total=1122 [2022-10-16 10:01:00,338 INFO L87 Difference]: Start difference. First operand 159 states and 176 transitions. Second operand has 34 states, 33 states have (on average 2.4545454545454546) internal successors, (81), 34 states have internal predecessors, (81), 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 10:01:02,437 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse1 (select .cse2 .cse0))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= .cse0 0) (= .cse1 1) (<= |c_ULTIMATE.start_main_~sum~0#1| 2147483647) (= |c_ULTIMATE.start_main_~i~0#1| 0) (<= |c_ULTIMATE.start_main_~sum~0#1| (select .cse2 0)) (<= |c_ULTIMATE.start_main_~sum~0#1| (+ .cse1 1)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)) (forall ((v_ArrVal_186 Int)) (< 0 (+ (select (store .cse2 (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_186) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))))))) is different from false [2022-10-16 10:01:04,441 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) (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)) (forall ((v_ArrVal_186 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_186) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))))) is different from false [2022-10-16 10:01:06,530 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (<= |c_ULTIMATE.start_main_~sum~0#1| 2147483647) (<= |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 0)) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (<= 1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)) (forall ((v_ArrVal_186 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_186) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:01:08,535 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 1) (<= 1 (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)) (forall ((v_ArrVal_186 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_186) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))))))) is different from false [2022-10-16 10:01:10,700 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 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)))) (and (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= .cse0 1) (<= |c_ULTIMATE.start_main_~sum~0#1| 2147483647) (<= |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 0)) (< |c_ULTIMATE.start_main_~sum~0#1| (+ .cse0 2147483648)) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= (select .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 1) (<= 1 (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) (= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_92| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_92|)) (forall ((v_ArrVal_186 Int)) (< 0 (+ (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_92| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_186) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))))))) is different from false [2022-10-16 10:01:12,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:01:12,056 INFO L93 Difference]: Finished difference Result 247 states and 263 transitions. [2022-10-16 10:01:12,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 10:01:12,057 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.4545454545454546) internal successors, (81), 34 states have internal predecessors, (81), 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 10:01:12,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:01:12,059 INFO L225 Difference]: With dead ends: 247 [2022-10-16 10:01:12,059 INFO L226 Difference]: Without dead ends: 246 [2022-10-16 10:01:12,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=532, Invalid=2782, Unknown=16, NotChecked=702, Total=4032 [2022-10-16 10:01:12,061 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 495 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 366 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:01:12,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 873 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1200 Invalid, 0 Unknown, 366 Unchecked, 0.8s Time] [2022-10-16 10:01:12,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-10-16 10:01:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 160. [2022-10-16 10:01:12,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 129 states have (on average 1.372093023255814) internal successors, (177), 159 states have internal predecessors, (177), 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 10:01:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 177 transitions. [2022-10-16 10:01:12,080 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 177 transitions. Word has length 29 [2022-10-16 10:01:12,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:01:12,081 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 177 transitions. [2022-10-16 10:01:12,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.4545454545454546) internal successors, (81), 34 states have internal predecessors, (81), 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 10:01:12,082 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 177 transitions. [2022-10-16 10:01:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:01:12,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:01:12,084 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:01:12,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-16 10:01:12,289 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,SelfDestructingSolverStorable15 [2022-10-16 10:01:12,289 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:01:12,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:01:12,290 INFO L85 PathProgramCache]: Analyzing trace with hash 516964005, now seen corresponding path program 3 times [2022-10-16 10:01:12,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:01:12,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372452088] [2022-10-16 10:01:12,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:01:12,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:01:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:01:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:01:13,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:01:13,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372452088] [2022-10-16 10:01:13,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372452088] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:01:13,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525160393] [2022-10-16 10:01:13,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:01:13,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:01:13,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:01:13,352 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 10:01:13,376 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 10:01:13,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-16 10:01:13,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:01:13,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 37 conjunts are in the unsatisfiable core [2022-10-16 10:01:13,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:01:13,495 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 10:01:13,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:01:13,625 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 10:01:13,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:01:13,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:01:13,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:01:13,793 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:01:13,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-10-16 10:01:13,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:01:13,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:01:13,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:01:13,935 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:01:13,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-10-16 10:01:14,372 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:01:14,373 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 1 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:01:14,408 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:01:14,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:24,273 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_214 Int) (v_ArrVal_211 Int) (|v_ULTIMATE.start_main_~i~0#1_98| Int) (v_ArrVal_209 Int) (|v_ULTIMATE.start_main_~i~0#1_97| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_97| (+ |v_ULTIMATE.start_main_~i~0#1_98| 1)) (< (+ |v_ULTIMATE.start_main_~i~0#1_97| 1) c_~SIZE~0) (< (let ((.cse0 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_209) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_98| 4)) v_ArrVal_211) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_97| 4)) v_ArrVal_214))) (+ (select .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|))) 2147483648) (< |v_ULTIMATE.start_main_~i~0#1_98| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (not (<= v_ArrVal_209 1)))) is different from false