/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_const_m4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:03:49,264 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:03:49,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:03:49,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:03:49,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:03:49,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:03:49,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:03:49,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:03:49,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:03:49,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:03:49,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:03:49,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:03:49,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:03:49,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:03:49,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:03:49,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:03:49,388 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:03:49,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:03:49,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:03:49,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:03:49,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:03:49,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:03:49,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:03:49,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:03:49,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:03:49,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:03:49,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:03:49,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:03:49,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:03:49,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:03:49,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:03:49,441 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:03:49,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:03:49,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:03:49,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:03:49,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:03:49,445 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 10:03:49,509 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:03:49,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:03:49,510 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:03:49,510 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:03:49,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:03:49,513 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:03:49,516 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:03:49,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:03:49,517 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:03:49,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:03:49,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:03:49,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:03:49,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:03:49,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:03:49,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:03:49,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:03:49,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:03:49,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:03:49,521 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:03:49,521 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:03:49,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:03:49,522 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:03:49,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:03:49,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:03:49,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:03:49,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:03:49,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:03:49,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:03:49,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:03:49,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:03:49,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:03:49,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:03:49,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:03:49,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:03:50,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:03:50,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:03:50,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:03:50,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:03:50,054 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:03:50,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_const_m4.c [2022-10-16 10:03:50,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49c1c527/52a81084e6c248d7ac92073bb78df1da/FLAG484a827df [2022-10-16 10:03:50,773 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:03:50,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m4.c [2022-10-16 10:03:50,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49c1c527/52a81084e6c248d7ac92073bb78df1da/FLAG484a827df [2022-10-16 10:03:51,137 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e49c1c527/52a81084e6c248d7ac92073bb78df1da [2022-10-16 10:03:51,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:03:51,146 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:03:51,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:03:51,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:03:51,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:03:51,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583f199e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51, skipping insertion in model container [2022-10-16 10:03:51,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:03:51,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:03:51,376 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_const_m4.c[408,421] [2022-10-16 10:03:51,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:03:51,418 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:03:51,435 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_const_m4.c[408,421] [2022-10-16 10:03:51,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:03:51,469 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:03:51,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51 WrapperNode [2022-10-16 10:03:51,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:03:51,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:03:51,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:03:51,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:03:51,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,527 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2022-10-16 10:03:51,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:03:51,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:03:51,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:03:51,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:03:51,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,563 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:03:51,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:03:51,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:03:51,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:03:51,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (1/1) ... [2022-10-16 10:03:51,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:03:51,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:51,623 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 10:03:51,644 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 10:03:51,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:03:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:03:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:03:51,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:03:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:03:51,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:03:51,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:03:51,803 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:03:51,806 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:03:52,333 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:03:52,355 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:03:52,355 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-16 10:03:52,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:03:52 BoogieIcfgContainer [2022-10-16 10:03:52,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:03:52,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:03:52,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:03:52,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:03:52,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:03:51" (1/3) ... [2022-10-16 10:03:52,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2efc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:03:52, skipping insertion in model container [2022-10-16 10:03:52,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:51" (2/3) ... [2022-10-16 10:03:52,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2efc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:03:52, skipping insertion in model container [2022-10-16 10:03:52,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:03:52" (3/3) ... [2022-10-16 10:03:52,374 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_const_m4.c [2022-10-16 10:03:52,403 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:03:52,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-10-16 10:03:52,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:03:52,526 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;@43e72ba2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:03:52,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2022-10-16 10:03:52,547 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 10:03:52,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 10:03:52,556 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:52,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 10:03:52,559 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 10:03:52,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:52,568 INFO L85 PathProgramCache]: Analyzing trace with hash 889512652, now seen corresponding path program 1 times [2022-10-16 10:03:52,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:52,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092934621] [2022-10-16 10:03:52,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:52,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:52,994 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 10:03:52,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:52,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092934621] [2022-10-16 10:03:52,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092934621] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:52,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:52,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:03:52,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660777828] [2022-10-16 10:03:53,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:53,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:03:53,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:53,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:03:53,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:03:53,046 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 10:03:53,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:53,354 INFO L93 Difference]: Finished difference Result 303 states and 356 transitions. [2022-10-16 10:03:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:03:53,359 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 10:03:53,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:53,378 INFO L225 Difference]: With dead ends: 303 [2022-10-16 10:03:53,379 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 10:03:53,384 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 10:03:53,393 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, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:53,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 241 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:03:53,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 10:03:53,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 101. [2022-10-16 10:03:53,468 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 10:03:53,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2022-10-16 10:03:53,482 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 6 [2022-10-16 10:03:53,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:53,483 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2022-10-16 10:03:53,484 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 10:03:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2022-10-16 10:03:53,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:03:53,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:53,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:53,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:03:53,487 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 10:03:53,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:53,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1805037039, now seen corresponding path program 1 times [2022-10-16 10:03:53,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:53,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324161295] [2022-10-16 10:03:53,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:53,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:53,659 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 10:03:53,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:53,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324161295] [2022-10-16 10:03:53,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324161295] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:53,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:53,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:03:53,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333922709] [2022-10-16 10:03:53,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:53,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:03:53,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:03:53,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:03:53,668 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 10:03:53,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:53,757 INFO L93 Difference]: Finished difference Result 189 states and 205 transitions. [2022-10-16 10:03:53,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:03:53,758 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 10:03:53,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:53,760 INFO L225 Difference]: With dead ends: 189 [2022-10-16 10:03:53,760 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 10:03:53,761 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 10:03:53,763 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 10:03:53,763 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 10:03:53,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 10:03:53,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2022-10-16 10:03:53,774 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 10:03:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2022-10-16 10:03:53,775 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 7 [2022-10-16 10:03:53,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:53,775 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2022-10-16 10:03:53,776 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 10:03:53,776 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2022-10-16 10:03:53,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:03:53,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:53,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:53,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:03:53,777 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 10:03:53,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:53,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1894413816, now seen corresponding path program 1 times [2022-10-16 10:03:53,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:53,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391287820] [2022-10-16 10:03:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:53,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:53,894 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 10:03:53,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:53,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391287820] [2022-10-16 10:03:53,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391287820] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:53,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805750609] [2022-10-16 10:03:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:53,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:53,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:53,900 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 10:03:53,902 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 10:03:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:53,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:03:53,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:54,074 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 10:03:54,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:54,153 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 10:03:54,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805750609] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:54,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:54,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:03:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372690441] [2022-10-16 10:03:54,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:54,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:03:54,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:03:54,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:03:54,164 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 10:03:54,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:54,533 INFO L93 Difference]: Finished difference Result 207 states and 227 transitions. [2022-10-16 10:03:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:03:54,534 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 10:03:54,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:54,540 INFO L225 Difference]: With dead ends: 207 [2022-10-16 10:03:54,540 INFO L226 Difference]: Without dead ends: 206 [2022-10-16 10:03:54,542 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 10:03:54,547 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 187 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 10:03:54,551 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 10:03:54,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-10-16 10:03:54,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 112. [2022-10-16 10:03:54,574 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 10:03:54,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 125 transitions. [2022-10-16 10:03:54,576 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 125 transitions. Word has length 10 [2022-10-16 10:03:54,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:54,576 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 125 transitions. [2022-10-16 10:03:54,576 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 10:03:54,577 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 125 transitions. [2022-10-16 10:03:54,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:03:54,577 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:54,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:54,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 10:03:54,793 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 10:03:54,794 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 10:03:54,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1402662451, now seen corresponding path program 1 times [2022-10-16 10:03:54,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:54,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536065485] [2022-10-16 10:03:54,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:54,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:54,928 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 10:03:54,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:54,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536065485] [2022-10-16 10:03:54,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536065485] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:54,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294965004] [2022-10-16 10:03:54,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:54,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:54,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:54,937 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 10:03:54,962 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 10:03:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:55,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:03:55,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:55,070 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 10:03:55,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:55,107 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 10:03:55,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294965004] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:55,108 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:55,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:03:55,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463967299] [2022-10-16 10:03:55,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:55,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:03:55,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:55,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:03:55,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:03:55,111 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 10:03:55,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:55,286 INFO L93 Difference]: Finished difference Result 201 states and 220 transitions. [2022-10-16 10:03:55,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:03:55,287 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 10:03:55,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:55,288 INFO L225 Difference]: With dead ends: 201 [2022-10-16 10:03:55,288 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 10:03:55,289 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 10:03:55,290 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 10:03:55,291 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 10:03:55,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 10:03:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2022-10-16 10:03:55,297 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 10:03:55,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2022-10-16 10:03:55,298 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 11 [2022-10-16 10:03:55,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:55,299 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2022-10-16 10:03:55,299 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 10:03:55,299 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2022-10-16 10:03:55,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:03:55,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:55,300 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:03:55,338 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 10:03:55,513 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 10:03:55,514 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 10:03:55,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1402713897, now seen corresponding path program 1 times [2022-10-16 10:03:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:55,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12268502] [2022-10-16 10:03:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:55,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:55,597 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 10:03:55,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:55,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12268502] [2022-10-16 10:03:55,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12268502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:55,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125645481] [2022-10-16 10:03:55,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:55,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:55,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:55,600 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 10:03:55,606 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 10:03:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:55,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:03:55,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:55,699 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 10:03:55,699 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:03:55,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125645481] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:55,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:03:55,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:03:55,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195574608] [2022-10-16 10:03:55,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:55,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:03:55,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:55,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:03:55,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:03:55,702 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 10:03:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:55,827 INFO L93 Difference]: Finished difference Result 199 states and 218 transitions. [2022-10-16 10:03:55,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:03:55,828 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 10:03:55,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:55,829 INFO L225 Difference]: With dead ends: 199 [2022-10-16 10:03:55,829 INFO L226 Difference]: Without dead ends: 198 [2022-10-16 10:03:55,830 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 10:03:55,831 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 10:03:55,832 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 10:03:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-10-16 10:03:55,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 111. [2022-10-16 10:03:55,839 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 10:03:55,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 121 transitions. [2022-10-16 10:03:55,839 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 121 transitions. Word has length 11 [2022-10-16 10:03:55,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:55,840 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 121 transitions. [2022-10-16 10:03:55,840 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 10:03:55,840 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 121 transitions. [2022-10-16 10:03:55,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:03:55,841 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:55,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:55,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:03:56,056 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 10:03:56,058 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 10:03:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash 591228023, now seen corresponding path program 2 times [2022-10-16 10:03:56,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:56,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353026003] [2022-10-16 10:03:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:56,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:56,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:56,602 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 10:03:56,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:56,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353026003] [2022-10-16 10:03:56,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353026003] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:56,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796918432] [2022-10-16 10:03:56,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:03:56,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:56,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:56,605 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 10:03:56,615 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 10:03:56,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:03:56,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:03:56,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:03:56,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:56,744 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 10:03:56,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:03:56,880 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 10:03:56,980 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 10:03:57,001 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 10:03:57,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:34,139 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 10:04:34,151 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 10:04:34,221 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 10:04:34,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796918432] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:34,222 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:34,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2022-10-16 10:04:34,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679262732] [2022-10-16 10:04:34,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:34,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:04:34,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:34,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:04:34,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=353, Unknown=23, NotChecked=0, Total=462 [2022-10-16 10:04:34,225 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 10:04:43,080 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 (< |c_ULTIMATE.start_main_~sum~0#1| 9223372036854775807) (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|)) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~0#1_55| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (= .cse1 0) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808))) is different from false [2022-10-16 10:04:43,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:43,614 INFO L93 Difference]: Finished difference Result 207 states and 233 transitions. [2022-10-16 10:04:43,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:04:43,615 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 10:04:43,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:43,616 INFO L225 Difference]: With dead ends: 207 [2022-10-16 10:04:43,617 INFO L226 Difference]: Without dead ends: 205 [2022-10-16 10:04:43,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=183, Invalid=663, Unknown=28, NotChecked=56, Total=930 [2022-10-16 10:04:43,618 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 258 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 284 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:43,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 408 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 679 Invalid, 0 Unknown, 284 Unchecked, 0.5s Time] [2022-10-16 10:04:43,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-16 10:04:43,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 117. [2022-10-16 10:04:43,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 84 states have (on average 1.5357142857142858) internal successors, (129), 116 states have internal predecessors, (129), 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 10:04:43,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2022-10-16 10:04:43,627 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 15 [2022-10-16 10:04:43,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:43,627 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2022-10-16 10:04:43,627 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 10:04:43,628 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2022-10-16 10:04:43,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:04:43,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:43,629 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:43,657 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 10:04:43,843 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 10:04:43,844 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 10:04:43,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:43,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1234401639, now seen corresponding path program 1 times [2022-10-16 10:04:43,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:43,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423129978] [2022-10-16 10:04:43,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:43,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:43,899 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 10:04:43,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:43,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423129978] [2022-10-16 10:04:43,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423129978] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:43,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:04:43,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:04:43,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053339840] [2022-10-16 10:04:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:43,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:04:43,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:43,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:04:43,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:04:43,903 INFO L87 Difference]: Start difference. First operand 117 states and 129 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 10:04:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:43,993 INFO L93 Difference]: Finished difference Result 271 states and 295 transitions. [2022-10-16 10:04:44,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:04:44,000 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 10:04:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:44,003 INFO L225 Difference]: With dead ends: 271 [2022-10-16 10:04:44,004 INFO L226 Difference]: Without dead ends: 194 [2022-10-16 10:04:44,004 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 10:04:44,005 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 171 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 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 10:04:44,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [171 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 10:04:44,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-10-16 10:04:44,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 123. [2022-10-16 10:04:44,014 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 10:04:44,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2022-10-16 10:04:44,016 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 17 [2022-10-16 10:04:44,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:44,017 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2022-10-16 10:04:44,017 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 10:04:44,017 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2022-10-16 10:04:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:04:44,019 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:44,019 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:44,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:04:44,020 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 10:04:44,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:44,020 INFO L85 PathProgramCache]: Analyzing trace with hash -386783092, now seen corresponding path program 1 times [2022-10-16 10:04:44,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:44,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373750208] [2022-10-16 10:04:44,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:44,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:44,076 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 10:04:44,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:44,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373750208] [2022-10-16 10:04:44,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373750208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:44,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:04:44,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:04:44,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172572090] [2022-10-16 10:04:44,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:44,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:04:44,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:44,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:04:44,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:04:44,079 INFO L87 Difference]: Start difference. First operand 123 states and 133 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 10:04:44,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:44,160 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2022-10-16 10:04:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:04:44,160 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 10:04:44,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:44,162 INFO L225 Difference]: With dead ends: 194 [2022-10-16 10:04:44,162 INFO L226 Difference]: Without dead ends: 192 [2022-10-16 10:04:44,163 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 10:04:44,163 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 70 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 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 10:04:44,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 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 10:04:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-10-16 10:04:44,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 127. [2022-10-16 10:04:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 126 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:44,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2022-10-16 10:04:44,172 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 18 [2022-10-16 10:04:44,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:44,172 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2022-10-16 10:04:44,172 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 10:04:44,173 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2022-10-16 10:04:44,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 10:04:44,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:44,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:44,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:04:44,174 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:04:44,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:44,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1622535910, now seen corresponding path program 1 times [2022-10-16 10:04:44,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:44,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124998717] [2022-10-16 10:04:44,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:44,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:44,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:44,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:44,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124998717] [2022-10-16 10:04:44,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124998717] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:44,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941695915] [2022-10-16 10:04:44,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:44,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:44,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:44,699 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 10:04:44,708 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 10:04:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:44,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 10:04:44,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:44,801 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 10:04:44,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:44,906 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 10:04:45,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:45,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:45,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:45,104 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:45,104 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 34 treesize of output 36 [2022-10-16 10:04:45,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:45,300 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:45,300 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 24 treesize of output 10 [2022-10-16 10:04:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:45,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:47,933 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 31 treesize of output 29 [2022-10-16 10:05:47,940 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 304 treesize of output 300 [2022-10-16 10:05:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:48,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941695915] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:48,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:48,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 30 [2022-10-16 10:05:48,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557229319] [2022-10-16 10:05:48,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:48,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-16 10:05:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-16 10:05:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=744, Unknown=35, NotChecked=0, Total=930 [2022-10-16 10:05:48,236 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand has 31 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 31 states have internal predecessors, (56), 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 10:05:51,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:51,614 INFO L93 Difference]: Finished difference Result 128 states and 138 transitions. [2022-10-16 10:05:51,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:05:51,615 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 31 states have internal predecessors, (56), 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 20 [2022-10-16 10:05:51,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:51,616 INFO L225 Difference]: With dead ends: 128 [2022-10-16 10:05:51,616 INFO L226 Difference]: Without dead ends: 127 [2022-10-16 10:05:51,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 65.8s TimeCoverageRelationStatistics Valid=255, Invalid=1114, Unknown=37, NotChecked=0, Total=1406 [2022-10-16 10:05:51,618 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 19 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 355 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:51,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 678 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 434 Invalid, 0 Unknown, 355 Unchecked, 0.3s Time] [2022-10-16 10:05:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-16 10:05:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2022-10-16 10:05:51,625 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 10:05:51,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2022-10-16 10:05:51,626 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 20 [2022-10-16 10:05:51,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:51,627 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2022-10-16 10:05:51,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 31 states have internal predecessors, (56), 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 10:05:51,627 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2022-10-16 10:05:51,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:05:51,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:51,628 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:51,667 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 10:05:51,842 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 10:05:51,842 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:05:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash 742231581, now seen corresponding path program 1 times [2022-10-16 10:05:51,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:51,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785372265] [2022-10-16 10:05:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:51,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:52,384 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 10:05:52,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785372265] [2022-10-16 10:05:52,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785372265] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:52,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271219863] [2022-10-16 10:05:52,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:52,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:52,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:52,390 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 10:05:52,402 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 10:05:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:52,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:05:52,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:52,475 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 10:05:52,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:52,567 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 10:05:52,876 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:52,877 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 10:05:52,901 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 10:05:52,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:53,353 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 10:05:53,363 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:53,363 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 367 treesize of output 343 [2022-10-16 10:05:53,474 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 10:05:53,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271219863] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:53,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:53,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 10:05:53,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354380668] [2022-10-16 10:05:53,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:53,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:05:53,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:53,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:05:53,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:05:53,478 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 10:05:54,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:54,912 INFO L93 Difference]: Finished difference Result 169 states and 183 transitions. [2022-10-16 10:05:54,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:05:54,913 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 10:05:54,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:54,915 INFO L225 Difference]: With dead ends: 169 [2022-10-16 10:05:54,915 INFO L226 Difference]: Without dead ends: 168 [2022-10-16 10:05:54,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=400, Invalid=2252, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 10:05:54,917 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 151 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 1063 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 284 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:54,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 642 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1063 Invalid, 0 Unknown, 284 Unchecked, 0.7s Time] [2022-10-16 10:05:54,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-10-16 10:05:54,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 132. [2022-10-16 10:05:54,926 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 10:05:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2022-10-16 10:05:54,927 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 21 [2022-10-16 10:05:54,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:54,928 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2022-10-16 10:05:54,928 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 10:05:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2022-10-16 10:05:54,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:05:54,929 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:54,929 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:54,969 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 10:05:55,144 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 10:05:55,145 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:05:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1534342596, now seen corresponding path program 1 times [2022-10-16 10:05:55,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:55,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511433147] [2022-10-16 10:05:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:55,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:55,408 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 10:05:55,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:55,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511433147] [2022-10-16 10:05:55,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511433147] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:55,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2092296244] [2022-10-16 10:05:55,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:55,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:55,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:55,411 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 10:05:55,417 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 10:05:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:55,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:05:55,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:55,493 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 10:05:55,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:55,588 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 10:05:55,916 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:55,916 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 10:05:55,946 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 10:05:55,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:56,369 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 10:05:56,379 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:56,380 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 1542 treesize of output 1446 [2022-10-16 10:05:56,949 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 10:05:56,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2092296244] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:56,949 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:56,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 33 [2022-10-16 10:05:56,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234300887] [2022-10-16 10:05:56,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:56,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:05:56,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:56,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:05:56,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=972, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:05:56,952 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 10:05:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:58,482 INFO L93 Difference]: Finished difference Result 254 states and 270 transitions. [2022-10-16 10:05:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 10:05:58,483 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 10:05:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:58,485 INFO L225 Difference]: With dead ends: 254 [2022-10-16 10:05:58,485 INFO L226 Difference]: Without dead ends: 253 [2022-10-16 10:05:58,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=425, Invalid=2227, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 10:05:58,488 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 337 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 306 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:58,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 931 Invalid, 1479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1104 Invalid, 0 Unknown, 306 Unchecked, 0.8s Time] [2022-10-16 10:05:58,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-10-16 10:05:58,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 135. [2022-10-16 10:05:58,499 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 10:05:58,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2022-10-16 10:05:58,499 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 22 [2022-10-16 10:05:58,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:58,500 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2022-10-16 10:05:58,500 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 10:05:58,500 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2022-10-16 10:05:58,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:05:58,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:58,501 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 10:05:58,539 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 10:05:58,714 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 10:05:58,714 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:05:58,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:58,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1716489148, now seen corresponding path program 2 times [2022-10-16 10:05:58,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:58,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116151844] [2022-10-16 10:05:58,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:58,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:58,831 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 10:05:58,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:58,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116151844] [2022-10-16 10:05:58,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116151844] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:58,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069005436] [2022-10-16 10:05:58,832 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:05:58,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:58,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:58,833 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 10:05:58,837 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 10:05:58,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:05:58,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:58,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:05:58,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:58,926 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 10:05:58,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:58,969 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 10:05:58,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069005436] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:58,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:58,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:05:58,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940035733] [2022-10-16 10:05:58,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:58,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:05:58,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:58,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:05:58,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:05:58,973 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 10:05:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:59,288 INFO L93 Difference]: Finished difference Result 208 states and 224 transitions. [2022-10-16 10:05:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:05:59,289 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 10:05:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:59,291 INFO L225 Difference]: With dead ends: 208 [2022-10-16 10:05:59,291 INFO L226 Difference]: Without dead ends: 207 [2022-10-16 10:05:59,292 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 10:05:59,293 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 415 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:59,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 424 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:05:59,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-10-16 10:05:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 132. [2022-10-16 10:05:59,303 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 10:05:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 145 transitions. [2022-10-16 10:05:59,304 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 145 transitions. Word has length 22 [2022-10-16 10:05:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:59,305 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 145 transitions. [2022-10-16 10:05:59,305 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 10:05:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 145 transitions. [2022-10-16 10:05:59,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:05:59,306 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:59,307 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 10:05:59,343 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 10:05:59,521 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 10:05:59,522 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:05:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash 319932813, now seen corresponding path program 1 times [2022-10-16 10:05:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:59,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518746026] [2022-10-16 10:05:59,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:59,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:59,587 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 10:05:59,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:59,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518746026] [2022-10-16 10:05:59,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518746026] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:59,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983538813] [2022-10-16 10:05:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:59,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:59,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:59,589 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 10:05:59,591 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 10:05:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:59,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:05:59,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:59,703 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 10:05:59,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:59,749 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 10:05:59,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983538813] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:59,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:59,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 10:05:59,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909999961] [2022-10-16 10:05:59,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:59,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:05:59,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:59,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:05:59,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:05:59,751 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 10:05:59,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:59,959 INFO L93 Difference]: Finished difference Result 285 states and 303 transitions. [2022-10-16 10:05:59,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:05:59,960 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 10:05:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:59,961 INFO L225 Difference]: With dead ends: 285 [2022-10-16 10:05:59,961 INFO L226 Difference]: Without dead ends: 202 [2022-10-16 10:05:59,962 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 10:05:59,964 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 323 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:59,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 320 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:05:59,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-16 10:05:59,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 132. [2022-10-16 10:05:59,983 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 10:05:59,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2022-10-16 10:05:59,984 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 23 [2022-10-16 10:05:59,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:59,987 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2022-10-16 10:05:59,987 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 10:05:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2022-10-16 10:05:59,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:05:59,989 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:59,989 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:06:00,012 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 10:06:00,190 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 10:06:00,190 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:06:00,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:00,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1329454374, now seen corresponding path program 1 times [2022-10-16 10:06:00,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:00,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139637090] [2022-10-16 10:06:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:00,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:00,297 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 10:06:00,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:00,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139637090] [2022-10-16 10:06:00,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139637090] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:00,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1085998929] [2022-10-16 10:06:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:00,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:00,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:00,309 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 10:06:00,339 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 10:06:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:00,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:06:00,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:06:00,411 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 10:06:00,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:06:00,447 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 10:06:00,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1085998929] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:06:00,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:06:00,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:06:00,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873597494] [2022-10-16 10:06:00,448 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:06:00,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:06:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:06:00,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:06:00,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:06:00,450 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 10:06:00,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:06:00,632 INFO L93 Difference]: Finished difference Result 222 states and 236 transitions. [2022-10-16 10:06:00,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:06:00,632 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 10:06:00,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:06:00,634 INFO L225 Difference]: With dead ends: 222 [2022-10-16 10:06:00,634 INFO L226 Difference]: Without dead ends: 221 [2022-10-16 10:06:00,635 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 10:06:00,636 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 239 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:06:00,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 392 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:06:00,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-10-16 10:06:00,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 146. [2022-10-16 10:06:00,648 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 10:06:00,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 165 transitions. [2022-10-16 10:06:00,649 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 165 transitions. Word has length 24 [2022-10-16 10:06:00,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:06:00,649 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 165 transitions. [2022-10-16 10:06:00,650 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 10:06:00,650 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 165 transitions. [2022-10-16 10:06:00,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:06:00,651 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:06:00,651 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:06:00,678 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 10:06:00,864 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 10:06:00,865 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:06:00,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:00,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1736587295, now seen corresponding path program 1 times [2022-10-16 10:06:00,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:00,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070824087] [2022-10-16 10:06:00,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:00,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:00,949 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 10:06:00,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:00,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070824087] [2022-10-16 10:06:00,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070824087] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:00,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599380533] [2022-10-16 10:06:00,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:00,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:00,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:00,951 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 10:06:00,989 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 10:06:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:01,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:06:01,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:06:01,054 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 10:06:01,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:06:01,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599380533] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:06:01,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:06:01,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:06:01,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527050072] [2022-10-16 10:06:01,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:06:01,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:06:01,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:06:01,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:06:01,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:06:01,057 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 10:06:01,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:06:01,156 INFO L93 Difference]: Finished difference Result 210 states and 229 transitions. [2022-10-16 10:06:01,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:06:01,156 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 10:06:01,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:06:01,158 INFO L225 Difference]: With dead ends: 210 [2022-10-16 10:06:01,158 INFO L226 Difference]: Without dead ends: 209 [2022-10-16 10:06:01,159 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 10:06:01,160 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 76 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:06:01,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 267 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:06:01,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-10-16 10:06:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 145. [2022-10-16 10:06:01,171 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 10:06:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 162 transitions. [2022-10-16 10:06:01,172 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 162 transitions. Word has length 25 [2022-10-16 10:06:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:06:01,172 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 162 transitions. [2022-10-16 10:06:01,173 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 10:06:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 162 transitions. [2022-10-16 10:06:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:06:01,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:06:01,174 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:06:01,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:06:01,389 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 10:06:01,390 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:06:01,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1881889603, now seen corresponding path program 2 times [2022-10-16 10:06:01,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:01,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289669085] [2022-10-16 10:06:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:01,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:01,544 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 10:06:01,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:01,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289669085] [2022-10-16 10:06:01,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289669085] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:01,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016631840] [2022-10-16 10:06:01,545 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:06:01,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:01,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:01,546 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 10:06:01,568 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 10:06:01,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:06:01,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:06:01,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:06:01,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:06:01,744 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 10:06:01,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:06:01,857 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 10:06:01,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016631840] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:06:01,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:06:01,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:06:01,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930796569] [2022-10-16 10:06:01,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:06:01,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:06:01,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:06:01,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:06:01,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:06:01,860 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 10:06:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:06:02,343 INFO L93 Difference]: Finished difference Result 472 states and 508 transitions. [2022-10-16 10:06:02,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:06:02,344 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 10:06:02,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:06:02,346 INFO L225 Difference]: With dead ends: 472 [2022-10-16 10:06:02,346 INFO L226 Difference]: Without dead ends: 370 [2022-10-16 10:06:02,347 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 10:06:02,348 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 447 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:06:02,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 1092 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:06:02,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2022-10-16 10:06:02,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 159. [2022-10-16 10:06:02,361 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 10:06:02,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 176 transitions. [2022-10-16 10:06:02,362 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 176 transitions. Word has length 27 [2022-10-16 10:06:02,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:06:02,362 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 176 transitions. [2022-10-16 10:06:02,363 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 10:06:02,363 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 176 transitions. [2022-10-16 10:06:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:06:02,363 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:06:02,364 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 10:06:02,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:06:02,578 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 10:06:02,579 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:06:02,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:02,580 INFO L85 PathProgramCache]: Analyzing trace with hash 314631475, now seen corresponding path program 2 times [2022-10-16 10:06:02,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:02,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893853355] [2022-10-16 10:06:02,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:02,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:03,360 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 10:06:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:03,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893853355] [2022-10-16 10:06:03,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893853355] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:03,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418779091] [2022-10-16 10:06:03,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:06:03,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:03,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:03,362 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 10:06:03,381 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 10:06:03,414 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:06:03,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:06:03,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 10:06:03,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:06:03,451 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 10:06:03,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:06:03,552 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 10:06:04,075 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:06:04,075 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 35 treesize of output 15 [2022-10-16 10:06:04,101 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 10:06:04,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:06:04,788 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 48 treesize of output 44 [2022-10-16 10:06:04,798 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:06:04,798 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 736 treesize of output 688 [2022-10-16 10:06:05,267 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 10:06:05,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418779091] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:06:05,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:06:05,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 44 [2022-10-16 10:06:05,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436065913] [2022-10-16 10:06:05,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:06:05,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-10-16 10:06:05,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:06:05,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-10-16 10:06:05,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1663, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:06:05,270 INFO L87 Difference]: Start difference. First operand 159 states and 176 transitions. Second operand has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 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 10:06:06,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:06:06,948 INFO L93 Difference]: Finished difference Result 184 states and 199 transitions. [2022-10-16 10:06:06,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:06:06,948 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 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 10:06:06,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:06:06,950 INFO L225 Difference]: With dead ends: 184 [2022-10-16 10:06:06,951 INFO L226 Difference]: Without dead ends: 182 [2022-10-16 10:06:06,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 943 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=606, Invalid=2934, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 10:06:06,953 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 227 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 1241 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 252 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:06:06,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 803 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1241 Invalid, 0 Unknown, 252 Unchecked, 0.8s Time] [2022-10-16 10:06:06,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-10-16 10:06:06,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 149. [2022-10-16 10:06:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 118 states have (on average 1.3898305084745763) internal successors, (164), 148 states have internal predecessors, (164), 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 10:06:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 164 transitions. [2022-10-16 10:06:06,969 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 164 transitions. Word has length 29 [2022-10-16 10:06:06,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:06:06,970 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 164 transitions. [2022-10-16 10:06:06,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 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 10:06:06,970 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 164 transitions. [2022-10-16 10:06:06,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:06:06,973 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:06:06,973 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:06:06,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 10:06:07,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 10:06:07,186 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:06:07,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:07,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1163641220, now seen corresponding path program 1 times [2022-10-16 10:06:07,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:07,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965124523] [2022-10-16 10:06:07,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:07,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:08,029 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 10:06:08,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:08,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965124523] [2022-10-16 10:06:08,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965124523] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:08,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962558983] [2022-10-16 10:06:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:08,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:08,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:08,032 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:06:08,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:06:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:08,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 10:06:08,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:06:08,128 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 10:06:08,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:06:08,218 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 10:06:08,371 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 10:06:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:06:08,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:06:10,576 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_105| Int)) (or (forall ((v_ArrVal_223 Int)) (< 0 (+ (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_105| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_223) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_105|)))) is different from false [2022-10-16 10:06:18,193 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 10:06:18,198 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 10:06:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 2 not checked. [2022-10-16 10:06:18,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962558983] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:06:18,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:06:18,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 32 [2022-10-16 10:06:18,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062608520] [2022-10-16 10:06:18,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:06:18,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 10:06:18,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:06:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 10:06:18,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=791, Unknown=6, NotChecked=60, Total=1056 [2022-10-16 10:06:18,249 INFO L87 Difference]: Start difference. First operand 149 states and 164 transitions. Second operand has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 states have internal predecessors, (82), 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 10:06:20,277 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_105| Int)) (or (forall ((v_ArrVal_223 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_105| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_223) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_105|)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:06:22,280 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_105| Int)) (or (forall ((v_ArrVal_223 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_105| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_223) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_105|)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:06:24,298 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 0) 1) (= (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_105| Int)) (or (forall ((v_ArrVal_223 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_105| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_223) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_105|)))) (<= 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) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:06:26,301 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 0) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_105| Int)) (or (forall ((v_ArrVal_223 Int)) (< 0 (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_105| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_223) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_105|)))) (= |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))) is different from false [2022-10-16 10:06:27,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:06:27,247 INFO L93 Difference]: Finished difference Result 232 states and 247 transitions. [2022-10-16 10:06:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:06:27,248 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 10:06:27,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:06:27,250 INFO L225 Difference]: With dead ends: 232 [2022-10-16 10:06:27,250 INFO L226 Difference]: Without dead ends: 231 [2022-10-16 10:06:27,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 18.4s TimeCoverageRelationStatistics Valid=316, Invalid=1334, Unknown=10, NotChecked=410, Total=2070 [2022-10-16 10:06:27,252 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 649 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 448 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:06:27,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 530 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 922 Invalid, 0 Unknown, 448 Unchecked, 0.7s Time] [2022-10-16 10:06:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-10-16 10:06:27,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 151. [2022-10-16 10:06:27,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 120 states have (on average 1.3916666666666666) internal successors, (167), 150 states have internal predecessors, (167), 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 10:06:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 167 transitions. [2022-10-16 10:06:27,266 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 167 transitions. Word has length 30 [2022-10-16 10:06:27,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:06:27,267 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 167 transitions. [2022-10-16 10:06:27,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 states have internal predecessors, (82), 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 10:06:27,267 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 167 transitions. [2022-10-16 10:06:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 10:06:27,268 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:06:27,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:06:27,304 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:06:27,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:27,481 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2022-10-16 10:06:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:06:27,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1003433593, now seen corresponding path program 3 times [2022-10-16 10:06:27,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:06:27,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283167749] [2022-10-16 10:06:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:06:27,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:06:27,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:06:28,647 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:06:28,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:06:28,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283167749] [2022-10-16 10:06:28,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283167749] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:06:28,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672737804] [2022-10-16 10:06:28,648 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:06:28,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:06:28,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:06:28,652 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:06:28,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:06:28,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 10:06:28,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:06:28,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 38 conjunts are in the unsatisfiable core [2022-10-16 10:06:28,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:06:28,763 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 10:06:28,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:06:28,881 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 10:06:29,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:06:29,045 INFO L356 Elim1Store]: treesize reduction 30, result has 49.2 percent of original size [2022-10-16 10:06:29,046 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 46 [2022-10-16 10:06:30,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:06:30,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:06:30,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:06:30,322 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:06:30,323 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 21 [2022-10-16 10:06:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:06:30,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:07:17,397 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 91 treesize of output 85 [2022-10-16 10:07:17,437 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 10:07:17,439 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 95930 treesize of output 89786