/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-examples/standard_copy8_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:11:47,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:11:47,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:11:47,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:11:47,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:11:47,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:11:47,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:11:47,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:11:47,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:11:47,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:11:47,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:11:47,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:11:47,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:11:47,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:11:47,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:11:47,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:11:47,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:11:47,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:11:47,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:11:47,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:11:47,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:11:47,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:11:47,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:11:47,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:11:47,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:11:47,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:11:47,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:11:47,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:11:47,374 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 [2022-10-15 20:11:47,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:11:47,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:11:47,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:11:47,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:11:47,429 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:11:47,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:11:47,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:11:47,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:11:47,432 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:11:47,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:11:47,434 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:11:47,434 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:11:47,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:11:47,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:11:47,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:11:47,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:11:47,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:11:47,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:11:47,436 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:11:47,436 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:11:47,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:11:47,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:11:47,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:11:47,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:11:47,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:11:47,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:11:47,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:11:47,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:11:47,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:11:47,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:11:47,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:11:47,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:11:47,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:11:47,439 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:11:47,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:11:47,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:11:47,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:11:47,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:11:47,886 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:11:47,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy8_ground-2.i [2022-10-15 20:11:47,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be96b9a4a/c499a014c302460183d396718c234a42/FLAG02daec664 [2022-10-15 20:11:48,528 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:11:48,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy8_ground-2.i [2022-10-15 20:11:48,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be96b9a4a/c499a014c302460183d396718c234a42/FLAG02daec664 [2022-10-15 20:11:48,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be96b9a4a/c499a014c302460183d396718c234a42 [2022-10-15 20:11:48,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:11:48,887 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:11:48,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:11:48,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:11:48,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:11:48,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:48" (1/1) ... [2022-10-15 20:11:48,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@549935ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:48, skipping insertion in model container [2022-10-15 20:11:48,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:48" (1/1) ... [2022-10-15 20:11:48,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:11:48,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:11:49,221 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-examples/standard_copy8_ground-2.i[816,829] [2022-10-15 20:11:49,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:11:49,310 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:11:49,335 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-examples/standard_copy8_ground-2.i[816,829] [2022-10-15 20:11:49,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:11:49,407 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:11:49,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49 WrapperNode [2022-10-15 20:11:49,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:11:49,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:11:49,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:11:49,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:11:49,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,465 INFO L138 Inliner]: procedures = 16, calls = 54, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 199 [2022-10-15 20:11:49,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:11:49,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:11:49,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:11:49,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:11:49,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,501 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:11:49,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:11:49,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:11:49,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:11:49,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (1/1) ... [2022-10-15 20:11:49,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:11:49,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:49,567 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) [2022-10-15 20:11:49,581 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 [2022-10-15 20:11:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:11:49,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:11:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:11:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:11:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:11:49,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:11:49,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:11:49,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:11:49,779 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:11:49,782 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:11:50,284 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:11:50,296 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:11:50,297 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-10-15 20:11:50,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:50 BoogieIcfgContainer [2022-10-15 20:11:50,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:11:50,303 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:11:50,303 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:11:50,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:11:50,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:11:48" (1/3) ... [2022-10-15 20:11:50,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc428e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:11:50, skipping insertion in model container [2022-10-15 20:11:50,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:49" (2/3) ... [2022-10-15 20:11:50,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc428e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:11:50, skipping insertion in model container [2022-10-15 20:11:50,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:50" (3/3) ... [2022-10-15 20:11:50,312 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy8_ground-2.i [2022-10-15 20:11:50,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:11:50,335 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-15 20:11:50,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:11:50,421 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;@2f1483bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:11:50,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-15 20:11:50,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 57 states have (on average 1.719298245614035) internal successors, (98), 77 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:50,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:11:50,437 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:50,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:11:50,439 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:50,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:11:50,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:50,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735306747] [2022-10-15 20:11:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:50,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:50,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:51,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:51,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735306747] [2022-10-15 20:11:51,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735306747] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:51,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:51,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:51,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194560249] [2022-10-15 20:11:51,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:51,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:51,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:51,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:51,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:51,116 INFO L87 Difference]: Start difference. First operand has 78 states, 57 states have (on average 1.719298245614035) internal successors, (98), 77 states have internal predecessors, (98), 0 states have call successors, (0), 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 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:51,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:51,205 INFO L93 Difference]: Finished difference Result 154 states and 194 transitions. [2022-10-15 20:11:51,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:51,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-10-15 20:11:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:51,219 INFO L225 Difference]: With dead ends: 154 [2022-10-15 20:11:51,220 INFO L226 Difference]: Without dead ends: 77 [2022-10-15 20:11:51,224 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 [2022-10-15 20:11:51,230 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 3 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:51,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 245 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:51,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-15 20:11:51,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-10-15 20:11:51,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.5087719298245614) internal successors, (86), 76 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:51,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2022-10-15 20:11:51,287 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 5 [2022-10-15 20:11:51,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:51,288 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2022-10-15 20:11:51,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:51,288 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2022-10-15 20:11:51,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:11:51,289 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:51,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:11:51,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:11:51,290 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:51,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:51,291 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:11:51,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:51,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492159100] [2022-10-15 20:11:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:51,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:11:51,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:51,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492159100] [2022-10-15 20:11:51,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492159100] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:51,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:51,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:51,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68820855] [2022-10-15 20:11:51,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:51,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:51,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:51,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:51,590 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:51,671 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2022-10-15 20:11:51,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:51,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 20:11:51,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:51,674 INFO L225 Difference]: With dead ends: 77 [2022-10-15 20:11:51,675 INFO L226 Difference]: Without dead ends: 76 [2022-10-15 20:11:51,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:11:51,680 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 5 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:51,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 225 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:51,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-15 20:11:51,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-10-15 20:11:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 75 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:51,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2022-10-15 20:11:51,709 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 9 [2022-10-15 20:11:51,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:51,710 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2022-10-15 20:11:51,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:51,711 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2022-10-15 20:11:51,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:11:51,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:51,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:11:51,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:11:51,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:51,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:51,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:11:51,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:51,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466704118] [2022-10-15 20:11:51,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:51,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:52,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:52,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466704118] [2022-10-15 20:11:52,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466704118] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:52,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466011390] [2022-10-15 20:11:52,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:52,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:52,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:52,070 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) [2022-10-15 20:11:52,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:11:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:52,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:11:52,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:52,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:11:52,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466011390] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:52,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:11:52,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:11:52,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059405409] [2022-10-15 20:11:52,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:52,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:11:52,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:52,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:11:52,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:11:52,370 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:52,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:52,448 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2022-10-15 20:11:52,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:11:52,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 [2022-10-15 20:11:52,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:52,450 INFO L225 Difference]: With dead ends: 76 [2022-10-15 20:11:52,450 INFO L226 Difference]: Without dead ends: 75 [2022-10-15 20:11:52,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:11:52,452 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 78 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:52,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 225 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:52,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-15 20:11:52,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2022-10-15 20:11:52,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 54 states have (on average 1.5) internal successors, (81), 71 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:52,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 81 transitions. [2022-10-15 20:11:52,462 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 81 transitions. Word has length 10 [2022-10-15 20:11:52,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:52,463 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 81 transitions. [2022-10-15 20:11:52,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:52,463 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 81 transitions. [2022-10-15 20:11:52,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 20:11:52,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:52,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:52,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:11:52,678 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 [2022-10-15 20:11:52,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:52,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:52,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-10-15 20:11:52,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:52,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069999737] [2022-10-15 20:11:52,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:52,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:52,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:52,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:52,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069999737] [2022-10-15 20:11:52,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069999737] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:52,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925787436] [2022-10-15 20:11:52,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:52,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:52,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:52,816 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) [2022-10-15 20:11:52,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:11:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:52,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:11:52,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:52,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:52,964 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:53,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:53,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925787436] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:53,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:53,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:11:53,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942903738] [2022-10-15 20:11:53,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:53,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:11:53,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:53,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:11:53,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:11:53,011 INFO L87 Difference]: Start difference. First operand 72 states and 81 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) [2022-10-15 20:11:53,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:53,084 INFO L93 Difference]: Finished difference Result 145 states and 164 transitions. [2022-10-15 20:11:53,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 20:11:53,085 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 [2022-10-15 20:11:53,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:53,086 INFO L225 Difference]: With dead ends: 145 [2022-10-15 20:11:53,086 INFO L226 Difference]: Without dead ends: 80 [2022-10-15 20:11:53,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:11:53,089 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 13 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:53,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 376 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:53,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-15 20:11:53,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2022-10-15 20:11:53,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 62 states have (on average 1.435483870967742) internal successors, (89), 79 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:53,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2022-10-15 20:11:53,099 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 11 [2022-10-15 20:11:53,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:53,100 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2022-10-15 20:11:53,100 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) [2022-10-15 20:11:53,100 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2022-10-15 20:11:53,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:11:53,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:53,101 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:53,141 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:11:53,316 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 [2022-10-15 20:11:53,317 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:53,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:53,319 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-10-15 20:11:53,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:53,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149619325] [2022-10-15 20:11:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:53,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:11:53,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:53,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149619325] [2022-10-15 20:11:53,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149619325] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:53,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:53,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:53,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707605954] [2022-10-15 20:11:53,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:53,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:53,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:53,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:53,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:53,451 INFO L87 Difference]: Start difference. First operand 80 states and 89 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2022-10-15 20:11:53,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:53,578 INFO L93 Difference]: Finished difference Result 186 states and 210 transitions. [2022-10-15 20:11:53,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:53,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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 19 [2022-10-15 20:11:53,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:53,580 INFO L225 Difference]: With dead ends: 186 [2022-10-15 20:11:53,580 INFO L226 Difference]: Without dead ends: 126 [2022-10-15 20:11:53,581 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 [2022-10-15 20:11:53,582 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 38 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:53,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 160 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:53,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-10-15 20:11:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 91. [2022-10-15 20:11:53,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 73 states have (on average 1.36986301369863) internal successors, (100), 90 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:53,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2022-10-15 20:11:53,599 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 19 [2022-10-15 20:11:53,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:53,599 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2022-10-15 20:11:53,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 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) [2022-10-15 20:11:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2022-10-15 20:11:53,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 20:11:53,600 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:53,600 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:53,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:11:53,601 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:53,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-10-15 20:11:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:53,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760941503] [2022-10-15 20:11:53,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:53,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-15 20:11:53,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:53,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760941503] [2022-10-15 20:11:53,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760941503] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:53,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:53,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:11:53,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040955801] [2022-10-15 20:11:53,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:53,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:53,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:53,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:53,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:11:53,714 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:53,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:53,813 INFO L93 Difference]: Finished difference Result 91 states and 100 transitions. [2022-10-15 20:11:53,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:53,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 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 [2022-10-15 20:11:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:53,814 INFO L225 Difference]: With dead ends: 91 [2022-10-15 20:11:53,815 INFO L226 Difference]: Without dead ends: 90 [2022-10-15 20:11:53,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:11:53,816 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 40 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:53,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 134 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:53,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-15 20:11:53,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-10-15 20:11:53,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 73 states have (on average 1.356164383561644) internal successors, (99), 89 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:53,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 99 transitions. [2022-10-15 20:11:53,826 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 99 transitions. Word has length 23 [2022-10-15 20:11:53,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:53,826 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 99 transitions. [2022-10-15 20:11:53,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 99 transitions. [2022-10-15 20:11:53,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:11:53,828 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:53,828 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:53,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:11:53,828 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:53,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:53,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330462, now seen corresponding path program 1 times [2022-10-15 20:11:53,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:53,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831060449] [2022-10-15 20:11:53,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:53,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:54,106 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:54,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:54,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831060449] [2022-10-15 20:11:54,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831060449] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:54,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369416306] [2022-10-15 20:11:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:54,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:54,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:54,108 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) [2022-10-15 20:11:54,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:11:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:54,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:11:54,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:54,302 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:54,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:54,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369416306] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:54,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:54,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-15 20:11:54,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018595813] [2022-10-15 20:11:54,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:54,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-15 20:11:54,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:54,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-15 20:11:54,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:11:54,409 INFO L87 Difference]: Start difference. First operand 90 states and 99 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:54,559 INFO L93 Difference]: Finished difference Result 181 states and 202 transitions. [2022-10-15 20:11:54,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-15 20:11:54,560 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 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 [2022-10-15 20:11:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:54,561 INFO L225 Difference]: With dead ends: 181 [2022-10-15 20:11:54,561 INFO L226 Difference]: Without dead ends: 106 [2022-10-15 20:11:54,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-15 20:11:54,564 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 35 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:54,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 370 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-15 20:11:54,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2022-10-15 20:11:54,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 105 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2022-10-15 20:11:54,574 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 24 [2022-10-15 20:11:54,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:54,575 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2022-10-15 20:11:54,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:54,575 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2022-10-15 20:11:54,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-15 20:11:54,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:54,577 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:54,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:11:54,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:54,791 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:54,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:54,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1811331278, now seen corresponding path program 2 times [2022-10-15 20:11:54,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:54,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668055058] [2022-10-15 20:11:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:54,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:55,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:55,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668055058] [2022-10-15 20:11:55,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668055058] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:55,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255477026] [2022-10-15 20:11:55,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:11:55,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:55,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:55,368 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) [2022-10-15 20:11:55,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:11:55,564 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:11:55,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:11:55,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:11:55,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:55,675 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:55,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:11:55,991 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:55,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255477026] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:11:55,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:11:55,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-15 20:11:55,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994627316] [2022-10-15 20:11:55,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:11:55,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-15 20:11:55,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:55,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-15 20:11:55,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 20:11:55,998 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:56,364 INFO L93 Difference]: Finished difference Result 213 states and 238 transitions. [2022-10-15 20:11:56,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-15 20:11:56,366 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-15 20:11:56,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:56,368 INFO L225 Difference]: With dead ends: 213 [2022-10-15 20:11:56,368 INFO L226 Difference]: Without dead ends: 138 [2022-10-15 20:11:56,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-15 20:11:56,371 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 103 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:56,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 370 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:56,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-10-15 20:11:56,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-10-15 20:11:56,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 121 states have (on average 1.2148760330578512) internal successors, (147), 137 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 147 transitions. [2022-10-15 20:11:56,382 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 147 transitions. Word has length 40 [2022-10-15 20:11:56,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:56,383 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 147 transitions. [2022-10-15 20:11:56,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 147 transitions. [2022-10-15 20:11:56,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 20:11:56,386 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:56,386 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:56,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:11:56,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:56,601 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:56,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:56,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 3 times [2022-10-15 20:11:56,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:56,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973150495] [2022-10-15 20:11:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:56,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:11:58,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:58,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973150495] [2022-10-15 20:11:58,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973150495] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:58,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604008900] [2022-10-15 20:11:58,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:11:58,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:58,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:58,023 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) [2022-10-15 20:11:58,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:11:58,201 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:11:58,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:11:58,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:11:58,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:58,267 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:11:58,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:11:58,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604008900] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:58,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:11:58,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-10-15 20:11:58,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790016412] [2022-10-15 20:11:58,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:58,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:58,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:58,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:58,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 20:11:58,271 INFO L87 Difference]: Start difference. First operand 138 states and 147 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:58,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:58,383 INFO L93 Difference]: Finished difference Result 138 states and 147 transitions. [2022-10-15 20:11:58,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:58,384 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-15 20:11:58,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:58,385 INFO L225 Difference]: With dead ends: 138 [2022-10-15 20:11:58,385 INFO L226 Difference]: Without dead ends: 137 [2022-10-15 20:11:58,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-10-15 20:11:58,390 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 54 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:58,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 109 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-10-15 20:11:58,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-10-15 20:11:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 118 states have (on average 1.2118644067796611) internal successors, (143), 133 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) [2022-10-15 20:11:58,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 143 transitions. [2022-10-15 20:11:58,419 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 143 transitions. Word has length 72 [2022-10-15 20:11:58,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:58,420 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 143 transitions. [2022-10-15 20:11:58,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:58,420 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 143 transitions. [2022-10-15 20:11:58,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-15 20:11:58,422 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:58,426 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:58,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:11:58,626 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 [2022-10-15 20:11:58,627 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:11:58,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:58,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1409160564, now seen corresponding path program 1 times [2022-10-15 20:11:58,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:58,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537402050] [2022-10-15 20:11:58,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:58,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:11:58,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:58,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537402050] [2022-10-15 20:11:58,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537402050] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:58,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876331209] [2022-10-15 20:11:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:58,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:58,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:58,848 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) [2022-10-15 20:11:58,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:11:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:59,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:11:59,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:59,655 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:11:59,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:12:00,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876331209] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:00,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:00,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-15 20:12:00,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388038862] [2022-10-15 20:12:00,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:00,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-15 20:12:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:00,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-15 20:12:00,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 20:12:00,732 INFO L87 Difference]: Start difference. First operand 134 states and 143 transitions. Second operand has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:02,039 INFO L93 Difference]: Finished difference Result 311 states and 345 transitions. [2022-10-15 20:12:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-15 20:12:02,040 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 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 73 [2022-10-15 20:12:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:02,042 INFO L225 Difference]: With dead ends: 311 [2022-10-15 20:12:02,043 INFO L226 Difference]: Without dead ends: 240 [2022-10-15 20:12:02,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-10-15 20:12:02,052 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 278 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:02,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 724 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:12:02,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-10-15 20:12:02,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 202. [2022-10-15 20:12:02,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 186 states have (on average 1.1344086021505377) internal successors, (211), 201 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 211 transitions. [2022-10-15 20:12:02,070 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 211 transitions. Word has length 73 [2022-10-15 20:12:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:02,071 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 211 transitions. [2022-10-15 20:12:02,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,071 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 211 transitions. [2022-10-15 20:12:02,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-15 20:12:02,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:02,085 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:02,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-15 20:12:02,299 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 [2022-10-15 20:12:02,300 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:12:02,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1254469680, now seen corresponding path program 2 times [2022-10-15 20:12:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:02,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253604566] [2022-10-15 20:12:02,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-15 20:12:02,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:02,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253604566] [2022-10-15 20:12:02,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253604566] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:02,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:02,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:12:02,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667544958] [2022-10-15 20:12:02,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:02,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:02,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:02,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:02,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:12:02,671 INFO L87 Difference]: Start difference. First operand 202 states and 211 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:02,776 INFO L93 Difference]: Finished difference Result 237 states and 246 transitions. [2022-10-15 20:12:02,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:02,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 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 141 [2022-10-15 20:12:02,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:02,779 INFO L225 Difference]: With dead ends: 237 [2022-10-15 20:12:02,779 INFO L226 Difference]: Without dead ends: 235 [2022-10-15 20:12:02,779 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 [2022-10-15 20:12:02,780 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 36 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:02,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 154 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:02,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-10-15 20:12:02,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 205. [2022-10-15 20:12:02,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 189 states have (on average 1.1322751322751323) internal successors, (214), 204 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 214 transitions. [2022-10-15 20:12:02,792 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 214 transitions. Word has length 141 [2022-10-15 20:12:02,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:02,793 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 214 transitions. [2022-10-15 20:12:02,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,793 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 214 transitions. [2022-10-15 20:12:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-15 20:12:02,823 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:02,824 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:02,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 20:12:02,824 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:12:02,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:02,825 INFO L85 PathProgramCache]: Analyzing trace with hash 322471340, now seen corresponding path program 1 times [2022-10-15 20:12:02,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:02,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567188798] [2022-10-15 20:12:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:02,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:02,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-15 20:12:03,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:03,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567188798] [2022-10-15 20:12:03,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567188798] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:03,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:03,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:12:03,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359115260] [2022-10-15 20:12:03,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:03,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:03,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:03,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:12:03,116 INFO L87 Difference]: Start difference. First operand 205 states and 214 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 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) [2022-10-15 20:12:03,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:03,204 INFO L93 Difference]: Finished difference Result 205 states and 214 transitions. [2022-10-15 20:12:03,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:03,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 145 [2022-10-15 20:12:03,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:03,206 INFO L225 Difference]: With dead ends: 205 [2022-10-15 20:12:03,206 INFO L226 Difference]: Without dead ends: 204 [2022-10-15 20:12:03,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:12:03,208 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:03,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 130 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:03,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-15 20:12:03,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2022-10-15 20:12:03,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 189 states have (on average 1.126984126984127) internal successors, (213), 203 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:03,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 213 transitions. [2022-10-15 20:12:03,219 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 213 transitions. Word has length 145 [2022-10-15 20:12:03,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:03,219 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 213 transitions. [2022-10-15 20:12:03,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 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) [2022-10-15 20:12:03,220 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 213 transitions. [2022-10-15 20:12:03,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-15 20:12:03,221 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:03,221 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:03,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 20:12:03,222 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:12:03,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:03,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1406677030, now seen corresponding path program 1 times [2022-10-15 20:12:03,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:03,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724760157] [2022-10-15 20:12:03,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:03,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:07,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:07,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724760157] [2022-10-15 20:12:07,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724760157] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:07,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693626705] [2022-10-15 20:12:07,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:07,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:07,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:07,246 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) [2022-10-15 20:12:07,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:12:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:07,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:12:07,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:07,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:11,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:11,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693626705] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:11,498 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:11,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-15 20:12:11,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494081623] [2022-10-15 20:12:11,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:11,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-15 20:12:11,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:11,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-15 20:12:11,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-15 20:12:11,511 INFO L87 Difference]: Start difference. First operand 204 states and 213 transitions. Second operand has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:14,932 INFO L93 Difference]: Finished difference Result 409 states and 458 transitions. [2022-10-15 20:12:14,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-15 20:12:14,938 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 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 146 [2022-10-15 20:12:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:14,944 INFO L225 Difference]: With dead ends: 409 [2022-10-15 20:12:14,944 INFO L226 Difference]: Without dead ends: 332 [2022-10-15 20:12:14,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-15 20:12:14,958 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 581 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:14,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 860 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:12:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-10-15 20:12:14,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2022-10-15 20:12:14,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 317 states have (on average 1.0757097791798107) internal successors, (341), 331 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:14,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 341 transitions. [2022-10-15 20:12:14,975 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 341 transitions. Word has length 146 [2022-10-15 20:12:14,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:14,975 INFO L495 AbstractCegarLoop]: Abstraction has 332 states and 341 transitions. [2022-10-15 20:12:14,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:14,976 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 341 transitions. [2022-10-15 20:12:14,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-15 20:12:14,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:14,980 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:15,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-15 20:12:15,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:15,195 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-15 20:12:15,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:15,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1212059482, now seen corresponding path program 2 times [2022-10-15 20:12:15,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:15,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259322039] [2022-10-15 20:12:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:15,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:27,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:27,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259322039] [2022-10-15 20:12:27,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259322039] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:27,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869497915] [2022-10-15 20:12:27,885 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:12:27,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:27,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:27,886 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) [2022-10-15 20:12:27,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:12:28,335 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:12:28,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:28,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 1558 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-15 20:12:28,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 20:12:28,842 INFO L328 TraceCheckSpWp]: Computing backward predicates...