/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/loop-lit/css2003.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:29:27,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:29:27,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:29:27,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:29:27,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:29:27,464 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:29:27,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:29:27,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:29:27,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:29:27,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:29:27,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:29:27,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:29:27,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:29:27,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:29:27,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:29:27,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:29:27,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:29:27,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:29:27,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:29:27,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:29:27,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:29:27,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:29:27,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:29:27,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:29:27,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:29:27,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:29:27,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:29:27,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:29:27,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:29:27,597 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:29:27,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:29:27,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:29:27,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:29:27,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:29:27,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:29:27,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:29:27,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:29:27,601 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:29:27,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:29:27,601 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:29:27,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:29:27,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:29:27,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:29:27,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:29:27,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:29:27,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:29:27,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:29:27,603 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:29:27,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:29:27,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:29:27,604 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:29:27,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:29:27,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:29:27,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:29:27,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:29:27,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:27,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:29:27,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:29:27,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:29:27,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:29:27,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:29:27,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:29:27,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:29:27,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:29:28,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:29:28,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:29:28,005 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:29:28,006 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:29:28,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/css2003.i [2022-10-16 14:29:28,097 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022976665/a076fe408a4c4345a66840e36def3b35/FLAG66bbac4f9 [2022-10-16 14:29:28,789 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:29:28,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/css2003.i [2022-10-16 14:29:28,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022976665/a076fe408a4c4345a66840e36def3b35/FLAG66bbac4f9 [2022-10-16 14:29:29,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022976665/a076fe408a4c4345a66840e36def3b35 [2022-10-16 14:29:29,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:29:29,140 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:29:29,141 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:29,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:29:29,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:29:29,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a3cb44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29, skipping insertion in model container [2022-10-16 14:29:29,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:29:29,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:29:29,335 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/loop-lit/css2003.i[895,908] [2022-10-16 14:29:29,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:29,357 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:29:29,375 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/loop-lit/css2003.i[895,908] [2022-10-16 14:29:29,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:29:29,393 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:29:29,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29 WrapperNode [2022-10-16 14:29:29,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:29:29,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:29,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:29:29,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:29:29,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,434 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-10-16 14:29:29,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:29:29,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:29:29,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:29:29,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:29:29,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,457 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:29:29,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:29:29,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:29:29,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:29:29,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (1/1) ... [2022-10-16 14:29:29,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:29:29,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:29,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:29:29,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:29:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:29:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:29:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:29:29,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:29:29,667 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:29:29,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:29:29,964 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:29:29,974 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:29:29,974 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 14:29:29,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:29 BoogieIcfgContainer [2022-10-16 14:29:29,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:29:29,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:29:29,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:29:29,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:29:29,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:29:29" (1/3) ... [2022-10-16 14:29:29,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568ac307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:29, skipping insertion in model container [2022-10-16 14:29:29,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:29:29" (2/3) ... [2022-10-16 14:29:29,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@568ac307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:29:29, skipping insertion in model container [2022-10-16 14:29:29,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:29:29" (3/3) ... [2022-10-16 14:29:29,990 INFO L112 eAbstractionObserver]: Analyzing ICFG css2003.i [2022-10-16 14:29:30,017 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:29:30,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-10-16 14:29:30,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:29:30,173 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;@797f1a9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:29:30,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-10-16 14:29:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:29:30,204 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:30,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:29:30,206 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:30,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:30,224 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-10-16 14:29:30,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:30,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448798470] [2022-10-16 14:29:30,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:30,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:30,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:30,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448798470] [2022-10-16 14:29:30,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448798470] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:30,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:30,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787487442] [2022-10-16 14:29:30,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:30,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:30,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:30,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:30,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:30,537 INFO L87 Difference]: Start difference. First operand has 33 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 32 states have internal predecessors, (37), 0 states have call successors, (0), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-10-16 14:29:30,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:30,644 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2022-10-16 14:29:30,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:30,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-10-16 14:29:30,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:30,662 INFO L225 Difference]: With dead ends: 69 [2022-10-16 14:29:30,663 INFO L226 Difference]: Without dead ends: 31 [2022-10-16 14:29:30,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:30,672 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:30,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:30,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-16 14:29:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-10-16 14:29:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:30,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-10-16 14:29:30,716 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 5 [2022-10-16 14:29:30,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:30,716 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-10-16 14:29:30,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-10-16 14:29:30,717 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-10-16 14:29:30,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 14:29:30,717 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:30,718 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:30,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:29:30,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:30,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:30,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-10-16 14:29:30,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:30,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741569279] [2022-10-16 14:29:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:30,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:30,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:30,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741569279] [2022-10-16 14:29:30,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741569279] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:30,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:30,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:29:30,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229340462] [2022-10-16 14:29:30,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:30,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:30,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:29:30,841 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:30,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:30,876 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-10-16 14:29:30,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:30,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 14:29:30,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:30,881 INFO L225 Difference]: With dead ends: 35 [2022-10-16 14:29:30,882 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 14:29:30,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:29:30,889 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:30,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 49 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 14:29:30,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-10-16 14:29:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-10-16 14:29:30,904 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 7 [2022-10-16 14:29:30,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:30,905 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-10-16 14:29:30,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:30,906 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-10-16 14:29:30,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:29:30,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:30,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:30,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:29:30,908 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:30,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:30,913 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-10-16 14:29:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:30,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516822880] [2022-10-16 14:29:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:30,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:30,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:30,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516822880] [2022-10-16 14:29:30,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516822880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:30,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:30,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:29:30,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488294343] [2022-10-16 14:29:30,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:30,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:30,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:29:30,996 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:31,010 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-10-16 14:29:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:31,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 14:29:31,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:31,012 INFO L225 Difference]: With dead ends: 34 [2022-10-16 14:29:31,012 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 14:29:31,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:29:31,014 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:31,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 50 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:31,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 14:29:31,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-16 14:29:31,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-10-16 14:29:31,022 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 8 [2022-10-16 14:29:31,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:31,023 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-10-16 14:29:31,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,023 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-10-16 14:29:31,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:29:31,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:31,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:31,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:29:31,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:31,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-10-16 14:29:31,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:31,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843665933] [2022-10-16 14:29:31,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:31,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:31,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:31,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:31,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:31,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843665933] [2022-10-16 14:29:31,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843665933] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:31,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:31,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:31,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990931585] [2022-10-16 14:29:31,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:31,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:31,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:31,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:31,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:31,079 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:31,108 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-10-16 14:29:31,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:31,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:29:31,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:31,110 INFO L225 Difference]: With dead ends: 33 [2022-10-16 14:29:31,110 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 14:29:31,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:31,112 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:31,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 13 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:31,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 14:29:31,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-16 14:29:31,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 23 states have (on average 1.434782608695652) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-10-16 14:29:31,126 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 9 [2022-10-16 14:29:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:31,126 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-10-16 14:29:31,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-10-16 14:29:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:29:31,127 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:31,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:31,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:29:31,128 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:31,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:31,129 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-10-16 14:29:31,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:31,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996217706] [2022-10-16 14:29:31,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:31,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:31,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:31,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:31,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996217706] [2022-10-16 14:29:31,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996217706] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:31,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:31,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:31,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034383181] [2022-10-16 14:29:31,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:31,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:31,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:31,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:31,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:31,184 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-10-16 14:29:31,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:31,237 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-10-16 14:29:31,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:31,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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 [2022-10-16 14:29:31,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:31,239 INFO L225 Difference]: With dead ends: 35 [2022-10-16 14:29:31,239 INFO L226 Difference]: Without dead ends: 34 [2022-10-16 14:29:31,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:31,241 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:31,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:31,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-10-16 14:29:31,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-10-16 14:29:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 25 states have (on average 1.4) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-10-16 14:29:31,254 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 10 [2022-10-16 14:29:31,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:31,254 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-10-16 14:29:31,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 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) [2022-10-16 14:29:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-10-16 14:29:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:29:31,255 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:31,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:31,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:29:31,256 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:31,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:31,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1472776363, now seen corresponding path program 1 times [2022-10-16 14:29:31,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:31,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264575580] [2022-10-16 14:29:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:31,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:31,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:31,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:31,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264575580] [2022-10-16 14:29:31,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264575580] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:31,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:31,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:29:31,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605048533] [2022-10-16 14:29:31,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:31,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:29:31,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:31,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:29:31,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:31,450 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:31,504 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-10-16 14:29:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:29:31,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 14:29:31,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:31,506 INFO L225 Difference]: With dead ends: 34 [2022-10-16 14:29:31,506 INFO L226 Difference]: Without dead ends: 32 [2022-10-16 14:29:31,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:31,508 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 40 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:31,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 13 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:31,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-16 14:29:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-16 14:29:31,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.32) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-10-16 14:29:31,515 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 11 [2022-10-16 14:29:31,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:31,515 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-10-16 14:29:31,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-10-16 14:29:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:29:31,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:31,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:31,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:29:31,517 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:31,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:31,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1588572941, now seen corresponding path program 1 times [2022-10-16 14:29:31,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:31,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974601223] [2022-10-16 14:29:31,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:31,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:31,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974601223] [2022-10-16 14:29:31,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974601223] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:31,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:31,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:29:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122714871] [2022-10-16 14:29:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:31,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:29:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:31,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:29:31,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:31,628 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:31,711 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-10-16 14:29:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:29:31,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:29:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:31,712 INFO L225 Difference]: With dead ends: 32 [2022-10-16 14:29:31,712 INFO L226 Difference]: Without dead ends: 30 [2022-10-16 14:29:31,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:31,714 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 23 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:31,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 18 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-10-16 14:29:31,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-10-16 14:29:31,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.24) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-10-16 14:29:31,726 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 12 [2022-10-16 14:29:31,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:31,727 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-10-16 14:29:31,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,727 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-10-16 14:29:31,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:29:31,730 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:31,731 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:31,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:29:31,731 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:31,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:31,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1925442970, now seen corresponding path program 1 times [2022-10-16 14:29:31,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:31,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877676652] [2022-10-16 14:29:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:31,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:31,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:29:31,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:31,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877676652] [2022-10-16 14:29:31,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877676652] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:31,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:31,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:29:31,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730107041] [2022-10-16 14:29:31,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:31,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:29:31,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:31,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:29:31,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:31,781 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:31,796 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2022-10-16 14:29:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:29:31,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:29:31,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:31,798 INFO L225 Difference]: With dead ends: 30 [2022-10-16 14:29:31,798 INFO L226 Difference]: Without dead ends: 29 [2022-10-16 14:29:31,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:29:31,800 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 31 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 [2022-10-16 14:29:31,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 31 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:31,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-10-16 14:29:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-10-16 14:29:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.2) internal successors, (30), 28 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2022-10-16 14:29:31,807 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2022-10-16 14:29:31,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:31,807 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2022-10-16 14:29:31,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2022-10-16 14:29:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:29:31,808 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:31,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:31,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:29:31,809 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:31,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:31,810 INFO L85 PathProgramCache]: Analyzing trace with hash -440810024, now seen corresponding path program 1 times [2022-10-16 14:29:31,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:31,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841384404] [2022-10-16 14:29:31,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:31,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:31,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:31,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841384404] [2022-10-16 14:29:31,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841384404] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:31,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184198294] [2022-10-16 14:29:31,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:31,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:31,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:31,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:31,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:29:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:31,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:29:31,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:32,055 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:32,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:32,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184198294] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:32,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:32,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 14:29:32,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019341779] [2022-10-16 14:29:32,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:32,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:29:32,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:32,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:29:32,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:29:32,060 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:32,091 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2022-10-16 14:29:32,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:29:32,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 14:29:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:32,094 INFO L225 Difference]: With dead ends: 29 [2022-10-16 14:29:32,094 INFO L226 Difference]: Without dead ends: 28 [2022-10-16 14:29:32,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:29:32,098 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:32,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 17 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:32,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-16 14:29:32,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-10-16 14:29:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.16) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:32,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-10-16 14:29:32,114 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 19 [2022-10-16 14:29:32,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:32,114 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-10-16 14:29:32,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-10-16 14:29:32,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:29:32,118 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:32,119 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:32,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:32,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:32,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:32,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:32,334 INFO L85 PathProgramCache]: Analyzing trace with hash -780208804, now seen corresponding path program 1 times [2022-10-16 14:29:32,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:32,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021533035] [2022-10-16 14:29:32,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:32,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:32,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:32,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:32,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021533035] [2022-10-16 14:29:32,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021533035] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:32,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205887081] [2022-10-16 14:29:32,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:32,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:32,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:32,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:32,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:29:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:32,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:29:32,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:32,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:32,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:29:32,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205887081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:32,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:29:32,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2022-10-16 14:29:32,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108124549] [2022-10-16 14:29:32,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:32,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:29:32,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:32,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:29:32,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:29:32,756 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:32,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:32,873 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2022-10-16 14:29:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:29:32,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:29:32,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:32,875 INFO L225 Difference]: With dead ends: 63 [2022-10-16 14:29:32,875 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:29:32,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:29:32,876 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 43 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:32,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 24 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:32,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:29:32,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2022-10-16 14:29:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.15) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:32,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-10-16 14:29:32,894 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 20 [2022-10-16 14:29:32,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:32,894 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-10-16 14:29:32,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-10-16 14:29:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:29:32,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:32,896 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:32,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:33,109 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,SelfDestructingSolverStorable9 [2022-10-16 14:29:33,110 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash -293031680, now seen corresponding path program 1 times [2022-10-16 14:29:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:33,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960192505] [2022-10-16 14:29:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:33,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:33,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960192505] [2022-10-16 14:29:33,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960192505] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:33,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971102816] [2022-10-16 14:29:33,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:33,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:33,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:29:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:29:33,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:33,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:33,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:33,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971102816] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:33,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:33,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 14:29:33,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270116312] [2022-10-16 14:29:33,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:33,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:29:33,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:29:33,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:29:33,430 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:33,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:33,507 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-10-16 14:29:33,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:29:33,508 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 14:29:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:33,508 INFO L225 Difference]: With dead ends: 43 [2022-10-16 14:29:33,509 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 14:29:33,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:29:33,510 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 63 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:33,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 54 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:33,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 14:29:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 14:29:33,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 40 states have (on average 1.1) internal successors, (44), 41 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:33,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2022-10-16 14:29:33,515 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 22 [2022-10-16 14:29:33,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:33,516 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2022-10-16 14:29:33,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2022-10-16 14:29:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:29:33,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:33,517 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:33,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:33,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:33,733 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:33,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:33,734 INFO L85 PathProgramCache]: Analyzing trace with hash -494047434, now seen corresponding path program 1 times [2022-10-16 14:29:33,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:33,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348158095] [2022-10-16 14:29:33,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:33,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:33,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348158095] [2022-10-16 14:29:33,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348158095] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:33,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374680081] [2022-10-16 14:29:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:33,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:33,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:33,891 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:33,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:29:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:33,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:29:33,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:34,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374680081] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:34,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:34,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 15 [2022-10-16 14:29:34,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839984497] [2022-10-16 14:29:34,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:34,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:29:34,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:34,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:29:34,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:29:34,162 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:34,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:34,378 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-10-16 14:29:34,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:29:34,378 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 14:29:34,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:34,379 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:29:34,380 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:29:34,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=342, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:29:34,381 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 104 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:34,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 87 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:34,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:29:34,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2022-10-16 14:29:34,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 53 states have (on average 1.0754716981132075) internal successors, (57), 54 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:34,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2022-10-16 14:29:34,389 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 23 [2022-10-16 14:29:34,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:34,389 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2022-10-16 14:29:34,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2022-10-16 14:29:34,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 14:29:34,391 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:34,391 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:34,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:34,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:34,604 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1269391157, now seen corresponding path program 1 times [2022-10-16 14:29:34,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:34,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609148548] [2022-10-16 14:29:34,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:34,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:34,709 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:34,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609148548] [2022-10-16 14:29:34,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609148548] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:34,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102588115] [2022-10-16 14:29:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:34,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:34,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:34,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:34,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:29:34,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:34,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:29:34,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:34,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102588115] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:34,883 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:34,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 10 [2022-10-16 14:29:34,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027364719] [2022-10-16 14:29:34,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:34,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:29:34,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:29:34,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:29:34,885 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 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) [2022-10-16 14:29:35,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:35,058 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2022-10-16 14:29:35,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:29:35,058 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 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) Word has length 38 [2022-10-16 14:29:35,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:35,060 INFO L225 Difference]: With dead ends: 121 [2022-10-16 14:29:35,060 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 14:29:35,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:29:35,061 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 88 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:35,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 57 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:35,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 14:29:35,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2022-10-16 14:29:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 100 states have (on average 1.1) internal successors, (110), 101 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:35,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 110 transitions. [2022-10-16 14:29:35,087 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 110 transitions. Word has length 38 [2022-10-16 14:29:35,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:35,089 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 110 transitions. [2022-10-16 14:29:35,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.6) internal successors, (86), 11 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) [2022-10-16 14:29:35,089 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 110 transitions. [2022-10-16 14:29:35,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 14:29:35,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:35,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:29:35,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:35,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 14:29:35,298 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:35,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1789127254, now seen corresponding path program 1 times [2022-10-16 14:29:35,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:35,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519921845] [2022-10-16 14:29:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:35,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:35,507 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 45 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:29:35,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:35,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519921845] [2022-10-16 14:29:35,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519921845] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:35,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924910172] [2022-10-16 14:29:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:35,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:35,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:35,509 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:35,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:29:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:35,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:29:35,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:29:35,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:35,784 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-16 14:29:35,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924910172] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:35,785 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:35,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 6] total 12 [2022-10-16 14:29:35,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365629078] [2022-10-16 14:29:35,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:35,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:29:35,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:35,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:29:35,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:29:35,787 INFO L87 Difference]: Start difference. First operand 102 states and 110 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:35,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:35,985 INFO L93 Difference]: Finished difference Result 174 states and 189 transitions. [2022-10-16 14:29:35,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 14:29:35,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-16 14:29:35,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:35,988 INFO L225 Difference]: With dead ends: 174 [2022-10-16 14:29:35,988 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 14:29:35,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 90 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:29:35,990 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 110 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:35,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 37 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:29:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 14:29:35,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2022-10-16 14:29:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 100 states have (on average 1.05) internal successors, (105), 101 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 105 transitions. [2022-10-16 14:29:36,000 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 105 transitions. Word has length 49 [2022-10-16 14:29:36,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:36,001 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 105 transitions. [2022-10-16 14:29:36,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 12 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 105 transitions. [2022-10-16 14:29:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:29:36,002 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:36,002 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-10-16 14:29:36,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:36,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:36,217 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:36,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1393978858, now seen corresponding path program 2 times [2022-10-16 14:29:36,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:36,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437967364] [2022-10-16 14:29:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:36,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:36,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:36,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437967364] [2022-10-16 14:29:36,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437967364] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:36,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064108263] [2022-10-16 14:29:36,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:29:36,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:36,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:36,597 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:36,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:29:36,690 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:29:36,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:36,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:29:36,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:36,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:37,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064108263] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:37,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:37,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 31 [2022-10-16 14:29:37,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260422298] [2022-10-16 14:29:37,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:37,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 14:29:37,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:37,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 14:29:37,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=798, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:29:37,222 INFO L87 Difference]: Start difference. First operand 102 states and 105 transitions. Second operand has 32 states, 31 states have (on average 5.064516129032258) internal successors, (157), 32 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:37,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:37,818 INFO L93 Difference]: Finished difference Result 116 states and 119 transitions. [2022-10-16 14:29:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:29:37,819 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.064516129032258) internal successors, (157), 32 states have internal predecessors, (157), 0 states have call successors, (0), 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 53 [2022-10-16 14:29:37,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:37,821 INFO L225 Difference]: With dead ends: 116 [2022-10-16 14:29:37,821 INFO L226 Difference]: Without dead ends: 115 [2022-10-16 14:29:37,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=575, Invalid=1587, Unknown=0, NotChecked=0, Total=2162 [2022-10-16 14:29:37,826 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 419 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:37,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 130 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:29:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-16 14:29:37,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-10-16 14:29:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 113 states have (on average 1.0176991150442478) internal successors, (115), 114 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) [2022-10-16 14:29:37,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 115 transitions. [2022-10-16 14:29:37,845 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 115 transitions. Word has length 53 [2022-10-16 14:29:37,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:37,845 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 115 transitions. [2022-10-16 14:29:37,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.064516129032258) internal successors, (157), 32 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:37,846 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 115 transitions. [2022-10-16 14:29:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-10-16 14:29:37,847 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:37,847 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2022-10-16 14:29:37,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:38,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:38,062 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:38,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:38,063 INFO L85 PathProgramCache]: Analyzing trace with hash 282908945, now seen corresponding path program 1 times [2022-10-16 14:29:38,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:38,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623684426] [2022-10-16 14:29:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:38,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:38,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:38,197 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-10-16 14:29:38,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:38,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623684426] [2022-10-16 14:29:38,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623684426] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:29:38,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:29:38,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:29:38,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039746097] [2022-10-16 14:29:38,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:29:38,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:29:38,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:38,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:29:38,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:29:38,200 INFO L87 Difference]: Start difference. First operand 115 states and 115 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:38,239 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2022-10-16 14:29:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:29:38,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 100 [2022-10-16 14:29:38,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:38,241 INFO L225 Difference]: With dead ends: 115 [2022-10-16 14:29:38,241 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 14:29:38,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:29:38,242 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:38,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 14 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:29:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 14:29:38,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-10-16 14:29:38,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.008849557522124) internal successors, (114), 113 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:38,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2022-10-16 14:29:38,253 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 100 [2022-10-16 14:29:38,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:38,253 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2022-10-16 14:29:38,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:38,254 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2022-10-16 14:29:38,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-16 14:29:38,255 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:38,255 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2022-10-16 14:29:38,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:29:38,256 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:38,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:38,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1663500246, now seen corresponding path program 3 times [2022-10-16 14:29:38,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:38,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884067486] [2022-10-16 14:29:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:38,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:39,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:39,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884067486] [2022-10-16 14:29:39,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884067486] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:39,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618055899] [2022-10-16 14:29:39,211 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:29:39,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:39,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:39,213 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:39,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:29:39,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-10-16 14:29:39,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:39,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:29:39,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:40,167 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:40,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:40,921 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:40,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618055899] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:40,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:40,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 17, 17] total 59 [2022-10-16 14:29:40,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361080102] [2022-10-16 14:29:40,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:40,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-10-16 14:29:40,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:40,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-10-16 14:29:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=546, Invalid=2994, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:29:40,926 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand has 60 states, 59 states have (on average 5.711864406779661) internal successors, (337), 60 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:43,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:29:43,590 INFO L93 Difference]: Finished difference Result 235 states and 242 transitions. [2022-10-16 14:29:43,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 14:29:43,591 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 5.711864406779661) internal successors, (337), 60 states have internal predecessors, (337), 0 states have call successors, (0), 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 113 [2022-10-16 14:29:43,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:29:43,593 INFO L225 Difference]: With dead ends: 235 [2022-10-16 14:29:43,593 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 14:29:43,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3757 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3089, Invalid=8901, Unknown=0, NotChecked=0, Total=11990 [2022-10-16 14:29:43,600 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1122 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:29:43,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 236 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:29:43,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 14:29:43,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2022-10-16 14:29:43,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.0042918454935623) internal successors, (234), 233 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:43,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 234 transitions. [2022-10-16 14:29:43,619 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 234 transitions. Word has length 113 [2022-10-16 14:29:43,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:29:43,620 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 234 transitions. [2022-10-16 14:29:43,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 5.711864406779661) internal successors, (337), 60 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:29:43,620 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 234 transitions. [2022-10-16 14:29:43,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-10-16 14:29:43,623 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:29:43,623 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1] [2022-10-16 14:29:43,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:29:43,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:29:43,838 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:29:43,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:29:43,839 INFO L85 PathProgramCache]: Analyzing trace with hash 121535318, now seen corresponding path program 4 times [2022-10-16 14:29:43,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:29:43,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224595072] [2022-10-16 14:29:43,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:29:43,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:29:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:29:47,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:47,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:29:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224595072] [2022-10-16 14:29:47,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224595072] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:29:47,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285345900] [2022-10-16 14:29:47,397 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:29:47,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:29:47,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:29:47,398 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:29:47,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:29:47,492 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:29:47,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:29:47,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 14:29:47,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:29:49,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:49,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:29:52,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 0 proven. 1650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:29:52,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285345900] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:29:52,211 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:29:52,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 33, 33] total 118 [2022-10-16 14:29:52,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122406264] [2022-10-16 14:29:52,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:29:52,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-10-16 14:29:52,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:29:52,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-10-16 14:29:52,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1923, Invalid=12119, Unknown=0, NotChecked=0, Total=14042 [2022-10-16 14:29:52,219 INFO L87 Difference]: Start difference. First operand 234 states and 234 transitions. Second operand has 119 states, 118 states have (on average 5.906779661016949) internal successors, (697), 119 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:04,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:30:04,039 INFO L93 Difference]: Finished difference Result 475 states and 490 transitions. [2022-10-16 14:30:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-10-16 14:30:04,040 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 5.906779661016949) internal successors, (697), 119 states have internal predecessors, (697), 0 states have call successors, (0), 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 233 [2022-10-16 14:30:04,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:30:04,043 INFO L225 Difference]: With dead ends: 475 [2022-10-16 14:30:04,043 INFO L226 Difference]: Without dead ends: 474 [2022-10-16 14:30:04,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 221 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16504 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=13278, Invalid=36228, Unknown=0, NotChecked=0, Total=49506 [2022-10-16 14:30:04,054 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4913 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1312 mSolverCounterSat, 1055 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4913 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1055 IncrementalHoareTripleChecker+Valid, 1312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:30:04,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4913 Valid, 438 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1055 Valid, 1312 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-16 14:30:04,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-10-16 14:30:04,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2022-10-16 14:30:04,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 473 states have (on average 1.0021141649048626) internal successors, (474), 473 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:04,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 474 transitions. [2022-10-16 14:30:04,091 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 474 transitions. Word has length 233 [2022-10-16 14:30:04,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:30:04,091 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 474 transitions. [2022-10-16 14:30:04,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 5.906779661016949) internal successors, (697), 119 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:30:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 474 transitions. [2022-10-16 14:30:04,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-10-16 14:30:04,101 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:30:04,102 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1] [2022-10-16 14:30:04,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:30:04,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:30:04,317 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:30:04,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:30:04,318 INFO L85 PathProgramCache]: Analyzing trace with hash -165678506, now seen corresponding path program 5 times [2022-10-16 14:30:04,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:30:04,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918437796] [2022-10-16 14:30:04,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:30:04,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:30:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:30:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7130 backedges. 0 proven. 7130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:30:16,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918437796] [2022-10-16 14:30:16,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918437796] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:30:16,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630464602] [2022-10-16 14:30:16,528 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:30:16,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:30:16,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:30:16,534 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:30:16,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:30:16,761 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2022-10-16 14:30:16,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:30:16,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 95 conjunts are in the unsatisfiable core [2022-10-16 14:30:16,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:30:29,268 INFO L134 CoverageAnalysis]: Checked inductivity of 7130 backedges. 0 proven. 7130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:29,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:30:46,309 INFO L134 CoverageAnalysis]: Checked inductivity of 7130 backedges. 0 proven. 7130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:30:46,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630464602] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:30:46,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:30:46,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 94, 94] total 293 [2022-10-16 14:30:46,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299147091] [2022-10-16 14:30:46,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:30:46,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 294 states [2022-10-16 14:30:46,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:30:46,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 294 interpolants. [2022-10-16 14:30:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10340, Invalid=75802, Unknown=0, NotChecked=0, Total=86142 [2022-10-16 14:30:46,325 INFO L87 Difference]: Start difference. First operand 474 states and 474 transitions. Second operand has 294 states, 293 states have (on average 4.836177474402731) internal successors, (1417), 294 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:32:41,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:32:41,285 INFO L93 Difference]: Finished difference Result 955 states and 986 transitions. [2022-10-16 14:32:41,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-10-16 14:32:41,286 INFO L78 Accepts]: Start accepts. Automaton has has 294 states, 293 states have (on average 4.836177474402731) internal successors, (1417), 294 states have internal predecessors, (1417), 0 states have call successors, (0), 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 473 [2022-10-16 14:32:41,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:32:41,292 INFO L225 Difference]: With dead ends: 955 [2022-10-16 14:32:41,293 INFO L226 Difference]: Without dead ends: 954 [2022-10-16 14:32:41,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1359 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 600 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132969 ImplicationChecksByTransitivity, 137.8s TimeCoverageRelationStatistics Valid=95332, Invalid=266470, Unknown=0, NotChecked=0, Total=361802 [2022-10-16 14:32:41,321 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 22399 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 3698 mSolverCounterSat, 5102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22399 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 8800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5102 IncrementalHoareTripleChecker+Valid, 3698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:32:41,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22399 Valid, 648 Invalid, 8800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5102 Valid, 3698 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-10-16 14:32:41,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-10-16 14:32:41,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-10-16 14:32:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 953 states have (on average 1.0010493179433368) internal successors, (954), 953 states have internal predecessors, (954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:32:41,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 954 transitions. [2022-10-16 14:32:41,404 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 954 transitions. Word has length 473 [2022-10-16 14:32:41,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:32:41,405 INFO L495 AbstractCegarLoop]: Abstraction has 954 states and 954 transitions. [2022-10-16 14:32:41,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 294 states, 293 states have (on average 4.836177474402731) internal successors, (1417), 294 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:32:41,407 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 954 transitions. [2022-10-16 14:32:41,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2022-10-16 14:32:41,446 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:32:41,446 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1] [2022-10-16 14:32:41,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:32:41,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:32:41,659 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-10-16 14:32:41,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:32:41,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1890377814, now seen corresponding path program 6 times [2022-10-16 14:32:41,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:32:41,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997544617] [2022-10-16 14:32:41,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:32:41,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:32:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:33:25,897 INFO L134 CoverageAnalysis]: Checked inductivity of 29610 backedges. 0 proven. 29610 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:33:25,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:33:25,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997544617] [2022-10-16 14:33:25,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997544617] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:33:25,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064779312] [2022-10-16 14:33:25,898 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:33:25,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:33:25,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:33:25,900 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:33:25,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:33:26,596 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2022-10-16 14:33:26,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:33:26,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 131 conjunts are in the unsatisfiable core [2022-10-16 14:33:26,629 INFO L286 TraceCheckSpWp]: Computing forward predicates...