/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/termination-nla/mannadiv-both-nt.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:22:23,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:22:23,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:22:23,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:22:23,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:22:23,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:22:23,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:22:23,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:22:23,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:22:23,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:22:23,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:22:23,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:22:23,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:22:23,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:22:23,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:22:23,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:22:23,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:22:23,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:22:23,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:22:23,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:22:23,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:22:23,256 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:22:23,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:22:23,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:22:23,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:22:23,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:22:23,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:22:23,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:22:23,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:22:23,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:22:23,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:22:23,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:22:23,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:22:23,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:22:23,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:22:23,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:22:23,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:22:23,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:22:23,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:22:23,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:22:23,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:22:23,294 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 17:22:23,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:22:23,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:22:23,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:22:23,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:22:23,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:22:23,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:22:23,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:22:23,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:22:23,360 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:22:23,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:22:23,361 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:22:23,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:22:23,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:22:23,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:22:23,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:22:23,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:22:23,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:22:23,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:22:23,363 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:22:23,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:22:23,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:22:23,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:22:23,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:22:23,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:22:23,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:22:23,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:22:23,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:22:23,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:22:23,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:22:23,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:22:23,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:22:23,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:22:23,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:22:23,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:22:23,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:22:23,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:22:23,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:22:23,845 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:22:23,846 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:22:23,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/mannadiv-both-nt.c [2022-10-16 17:22:23,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0972b9387/da56d14c77b941608a4d443ad119b44b/FLAGd50bf3ebe [2022-10-16 17:22:24,541 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:22:24,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/mannadiv-both-nt.c [2022-10-16 17:22:24,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0972b9387/da56d14c77b941608a4d443ad119b44b/FLAGd50bf3ebe [2022-10-16 17:22:24,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0972b9387/da56d14c77b941608a4d443ad119b44b [2022-10-16 17:22:24,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:22:24,927 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:22:24,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:22:24,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:22:24,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:22:24,937 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:22:24" (1/1) ... [2022-10-16 17:22:24,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fa37d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:24, skipping insertion in model container [2022-10-16 17:22:24,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:22:24" (1/1) ... [2022-10-16 17:22:24,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:22:24,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:22:25,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:22:25,129 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:22:25,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:22:25,157 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:22:25,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25 WrapperNode [2022-10-16 17:22:25,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:22:25,159 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:22:25,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:22:25,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:22:25,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,194 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 49 [2022-10-16 17:22:25,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:22:25,196 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:22:25,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:22:25,197 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:22:25,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,217 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,218 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:22:25,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:22:25,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:22:25,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:22:25,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (1/1) ... [2022-10-16 17:22:25,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:22:25,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:25,260 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 17:22:25,284 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 17:22:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:22:25,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:22:25,389 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:22:25,392 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:22:25,679 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:22:25,689 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:22:25,689 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:22:25,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:22:25 BoogieIcfgContainer [2022-10-16 17:22:25,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:22:25,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:22:25,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:22:25,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:22:25,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:22:24" (1/3) ... [2022-10-16 17:22:25,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94919f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:22:25, skipping insertion in model container [2022-10-16 17:22:25,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:22:25" (2/3) ... [2022-10-16 17:22:25,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94919f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:22:25, skipping insertion in model container [2022-10-16 17:22:25,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:22:25" (3/3) ... [2022-10-16 17:22:25,705 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv-both-nt.c [2022-10-16 17:22:25,733 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:22:25,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 17:22:25,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:22:25,838 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;@7c1e32e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:22:25,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 17:22:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 25 states have (on average 1.84) internal successors, (46), 41 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 17:22:25,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 17:22:25,852 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:25,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 17:22:25,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:25,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:25,861 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-10-16 17:22:25,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:25,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948426983] [2022-10-16 17:22:25,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:25,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:26,000 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:26,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1312880565] [2022-10-16 17:22:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:26,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:26,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:26,006 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 17:22:26,030 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 17:22:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:26,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:22:26,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:26,272 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 17:22:26,274 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:26,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:26,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948426983] [2022-10-16 17:22:26,275 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:26,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312880565] [2022-10-16 17:22:26,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312880565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:26,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:26,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:22:26,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358720113] [2022-10-16 17:22:26,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:26,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:22:26,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:26,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:22:26,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:26,341 INFO L87 Difference]: Start difference. First operand has 42 states, 25 states have (on average 1.84) internal successors, (46), 41 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:26,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:26,497 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2022-10-16 17:22:26,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:22:26,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 17:22:26,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:26,512 INFO L225 Difference]: With dead ends: 81 [2022-10-16 17:22:26,512 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 17:22:26,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:26,521 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 73 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:26,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 48 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:26,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 17:22:26,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2022-10-16 17:22:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 54 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 17:22:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2022-10-16 17:22:26,571 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 67 transitions. Word has length 5 [2022-10-16 17:22:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:26,572 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 67 transitions. [2022-10-16 17:22:26,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:26,572 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2022-10-16 17:22:26,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 17:22:26,573 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:26,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:26,619 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 17:22:26,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-16 17:22:26,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:26,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:26,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-10-16 17:22:26,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:26,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252630493] [2022-10-16 17:22:26,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:26,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:26,813 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:26,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [677598543] [2022-10-16 17:22:26,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:26,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:26,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:26,817 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 17:22:26,838 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 17:22:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:26,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:22:26,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:26,929 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 17:22:26,929 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:26,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:26,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252630493] [2022-10-16 17:22:26,931 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:26,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677598543] [2022-10-16 17:22:26,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677598543] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:26,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:26,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:22:26,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878039843] [2022-10-16 17:22:26,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:26,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:22:26,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:26,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:22:26,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:26,941 INFO L87 Difference]: Start difference. First operand 55 states and 67 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 17:22:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:27,085 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2022-10-16 17:22:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:22:27,086 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 17:22:27,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:27,094 INFO L225 Difference]: With dead ends: 97 [2022-10-16 17:22:27,094 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 17:22:27,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 17:22:27,099 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 47 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:27,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 34 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:27,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 17:22:27,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2022-10-16 17:22:27,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 63 states have (on average 1.6349206349206349) internal successors, (103), 78 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:27,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2022-10-16 17:22:27,138 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 7 [2022-10-16 17:22:27,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:27,141 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2022-10-16 17:22:27,141 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 17:22:27,142 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2022-10-16 17:22:27,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 17:22:27,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:27,143 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:27,186 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 17:22:27,357 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,SelfDestructingSolverStorable1 [2022-10-16 17:22:27,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:27,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:27,360 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2022-10-16 17:22:27,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:27,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490831983] [2022-10-16 17:22:27,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:27,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:27,371 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:27,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [177639145] [2022-10-16 17:22:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:27,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:27,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:27,373 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 17:22:27,401 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 17:22:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:27,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:22:27,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:27,454 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 17:22:27,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:27,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:27,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490831983] [2022-10-16 17:22:27,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:27,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177639145] [2022-10-16 17:22:27,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177639145] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:27,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:27,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:22:27,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942773648] [2022-10-16 17:22:27,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:27,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:22:27,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:27,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:22:27,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:27,458 INFO L87 Difference]: Start difference. First operand 79 states and 103 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 17:22:27,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:27,511 INFO L93 Difference]: Finished difference Result 80 states and 103 transitions. [2022-10-16 17:22:27,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:22:27,512 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 17:22:27,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:27,513 INFO L225 Difference]: With dead ends: 80 [2022-10-16 17:22:27,513 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 17:22:27,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 17:22:27,515 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:27,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 21 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:22:27,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 17:22:27,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-10-16 17:22:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.4603174603174602) internal successors, (92), 75 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2022-10-16 17:22:27,527 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 8 [2022-10-16 17:22:27,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:27,528 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2022-10-16 17:22:27,528 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 17:22:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2022-10-16 17:22:27,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:22:27,528 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:27,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:27,566 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 17:22:27,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:27,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:27,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-10-16 17:22:27,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:27,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341678643] [2022-10-16 17:22:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:27,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:27,756 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:27,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138807770] [2022-10-16 17:22:27,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:27,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:27,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:27,760 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 17:22:27,767 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 17:22:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:27,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 17:22:27,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:27,997 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 17:22:27,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:27,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:27,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341678643] [2022-10-16 17:22:27,999 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:27,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138807770] [2022-10-16 17:22:27,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138807770] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:27,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:28,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:22:28,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985437800] [2022-10-16 17:22:28,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:28,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:22:28,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:28,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:22:28,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:28,002 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:28,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:28,098 INFO L93 Difference]: Finished difference Result 81 states and 95 transitions. [2022-10-16 17:22:28,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:22:28,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 17:22:28,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:28,100 INFO L225 Difference]: With dead ends: 81 [2022-10-16 17:22:28,100 INFO L226 Difference]: Without dead ends: 80 [2022-10-16 17:22:28,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 17:22:28,103 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 59 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:28,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 18 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:28,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-10-16 17:22:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2022-10-16 17:22:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 63 states have (on average 1.4444444444444444) internal successors, (91), 75 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-10-16 17:22:28,115 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 9 [2022-10-16 17:22:28,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:28,116 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-10-16 17:22:28,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-10-16 17:22:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 17:22:28,117 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:28,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:28,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 17:22:28,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:28,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:28,334 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-10-16 17:22:28,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:28,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20937747] [2022-10-16 17:22:28,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:28,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:28,344 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:28,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1428421754] [2022-10-16 17:22:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:28,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:28,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:28,346 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 17:22:28,350 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 17:22:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:28,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:22:28,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:28,464 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 17:22:28,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:28,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:28,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20937747] [2022-10-16 17:22:28,465 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:28,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428421754] [2022-10-16 17:22:28,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428421754] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:28,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:28,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:22:28,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822685697] [2022-10-16 17:22:28,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:28,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:22:28,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:28,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:22:28,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:28,474 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 17:22:28,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:28,582 INFO L93 Difference]: Finished difference Result 88 states and 102 transitions. [2022-10-16 17:22:28,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:22:28,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 17:22:28,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:28,584 INFO L225 Difference]: With dead ends: 88 [2022-10-16 17:22:28,584 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 17:22:28,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 17:22:28,585 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:28,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 26 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:28,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 17:22:28,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2022-10-16 17:22:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 82 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2022-10-16 17:22:28,596 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 10 [2022-10-16 17:22:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:28,596 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2022-10-16 17:22:28,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 17:22:28,597 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2022-10-16 17:22:28,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:22:28,597 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:28,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:28,636 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 17:22:28,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:28,811 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:28,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:28,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1487941292, now seen corresponding path program 1 times [2022-10-16 17:22:28,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:28,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366213823] [2022-10-16 17:22:28,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:28,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:28,822 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:28,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [308641217] [2022-10-16 17:22:28,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:28,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:28,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:28,824 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 17:22:28,844 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 17:22:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:28,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:22:28,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:28,890 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 17:22:28,890 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:28,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:28,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366213823] [2022-10-16 17:22:28,891 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:28,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308641217] [2022-10-16 17:22:28,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308641217] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:28,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:28,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:22:28,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344078289] [2022-10-16 17:22:28,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:28,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:22:28,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:22:28,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:28,893 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:28,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:28,925 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2022-10-16 17:22:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:22:28,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 17:22:28,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:28,930 INFO L225 Difference]: With dead ends: 83 [2022-10-16 17:22:28,930 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 17:22:28,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 17:22:28,936 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 46 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:28,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 24 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:22:28,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 17:22:28,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-10-16 17:22:28,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 70 states have (on average 1.3428571428571427) internal successors, (94), 80 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:28,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 94 transitions. [2022-10-16 17:22:28,961 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 94 transitions. Word has length 17 [2022-10-16 17:22:28,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:28,965 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 94 transitions. [2022-10-16 17:22:28,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 94 transitions. [2022-10-16 17:22:28,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 17:22:28,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:28,966 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:29,002 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 17:22:29,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:29,167 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash 517581628, now seen corresponding path program 1 times [2022-10-16 17:22:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:29,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353062742] [2022-10-16 17:22:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:29,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:29,178 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:29,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143935519] [2022-10-16 17:22:29,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:29,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:29,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:29,180 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 17:22:29,189 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 17:22:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:29,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:22:29,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:29,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:29,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:29,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:29,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:29,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353062742] [2022-10-16 17:22:29,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:29,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143935519] [2022-10-16 17:22:29,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143935519] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:29,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:29,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-10-16 17:22:29,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633124807] [2022-10-16 17:22:29,795 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:29,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 17:22:29,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:29,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 17:22:29,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:22:29,797 INFO L87 Difference]: Start difference. First operand 81 states and 94 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:29,920 INFO L93 Difference]: Finished difference Result 120 states and 138 transitions. [2022-10-16 17:22:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:22:29,921 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 17:22:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:29,922 INFO L225 Difference]: With dead ends: 120 [2022-10-16 17:22:29,923 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 17:22:29,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:29,924 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 116 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:29,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 73 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 92 Invalid, 0 Unknown, 97 Unchecked, 0.1s Time] [2022-10-16 17:22:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 17:22:29,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2022-10-16 17:22:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 98 states have (on average 1.346938775510204) internal successors, (132), 108 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 132 transitions. [2022-10-16 17:22:29,935 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 132 transitions. Word has length 20 [2022-10-16 17:22:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:29,936 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 132 transitions. [2022-10-16 17:22:29,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 132 transitions. [2022-10-16 17:22:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 17:22:29,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:29,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:29,968 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 17:22:30,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:30,152 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:30,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:30,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1134838666, now seen corresponding path program 1 times [2022-10-16 17:22:30,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:30,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557438773] [2022-10-16 17:22:30,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:30,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:30,171 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:30,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2457088] [2022-10-16 17:22:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:30,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:30,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:30,174 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 17:22:30,196 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 17:22:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:30,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:22:30,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:30,367 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 17:22:30,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:30,646 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 17:22:30,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:30,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557438773] [2022-10-16 17:22:30,646 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:30,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2457088] [2022-10-16 17:22:30,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2457088] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:30,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:30,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2022-10-16 17:22:30,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129267820] [2022-10-16 17:22:30,647 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:30,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 17:22:30,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:30,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 17:22:30,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:22:30,649 INFO L87 Difference]: Start difference. First operand 109 states and 132 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:30,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:30,749 INFO L93 Difference]: Finished difference Result 115 states and 132 transitions. [2022-10-16 17:22:30,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:22:30,750 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 17:22:30,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:30,751 INFO L225 Difference]: With dead ends: 115 [2022-10-16 17:22:30,751 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 17:22:30,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:30,752 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 96 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:30,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 25 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 64 Invalid, 0 Unknown, 19 Unchecked, 0.1s Time] [2022-10-16 17:22:30,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 17:22:30,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 90. [2022-10-16 17:22:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 81 states have (on average 1.2962962962962963) internal successors, (105), 89 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 17:22:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2022-10-16 17:22:30,761 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 21 [2022-10-16 17:22:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:30,761 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2022-10-16 17:22:30,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 9 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2022-10-16 17:22:30,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:22:30,762 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:30,762 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 17:22:30,804 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 17:22:30,976 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,SelfDestructingSolverStorable7 [2022-10-16 17:22:30,977 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:30,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:30,978 INFO L85 PathProgramCache]: Analyzing trace with hash -886072568, now seen corresponding path program 1 times [2022-10-16 17:22:30,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:30,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301588996] [2022-10-16 17:22:30,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:30,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:30,987 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:30,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836140933] [2022-10-16 17:22:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:30,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:30,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:30,989 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 17:22:31,008 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 17:22:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:31,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:22:31,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:31,083 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 17:22:31,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:31,146 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 17:22:31,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:31,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301588996] [2022-10-16 17:22:31,148 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:31,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836140933] [2022-10-16 17:22:31,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836140933] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:31,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:31,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 17:22:31,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334012053] [2022-10-16 17:22:31,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:31,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:22:31,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:31,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:22:31,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:22:31,151 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:31,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:31,401 INFO L93 Difference]: Finished difference Result 144 states and 161 transitions. [2022-10-16 17:22:31,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:22:31,402 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 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 17:22:31,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:31,403 INFO L225 Difference]: With dead ends: 144 [2022-10-16 17:22:31,403 INFO L226 Difference]: Without dead ends: 143 [2022-10-16 17:22:31,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:22:31,405 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 175 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:31,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 22 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:22:31,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-10-16 17:22:31,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 124. [2022-10-16 17:22:31,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 115 states have (on average 1.3130434782608695) internal successors, (151), 123 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:31,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 151 transitions. [2022-10-16 17:22:31,417 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 151 transitions. Word has length 22 [2022-10-16 17:22:31,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:31,418 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 151 transitions. [2022-10-16 17:22:31,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 151 transitions. [2022-10-16 17:22:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:22:31,419 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:31,419 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:31,457 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 17:22:31,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:31,634 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:31,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1112211510, now seen corresponding path program 1 times [2022-10-16 17:22:31,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:31,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057031694] [2022-10-16 17:22:31,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:31,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:31,645 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:31,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581333053] [2022-10-16 17:22:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:31,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:31,647 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 17:22:31,656 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 17:22:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:31,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:22:31,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:31,728 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:31,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:31,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:31,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057031694] [2022-10-16 17:22:31,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:31,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581333053] [2022-10-16 17:22:31,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581333053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:31,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:31,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:22:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777326760] [2022-10-16 17:22:31,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:31,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:22:31,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:31,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:22:31,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:22:31,732 INFO L87 Difference]: Start difference. First operand 124 states and 151 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:31,774 INFO L93 Difference]: Finished difference Result 125 states and 151 transitions. [2022-10-16 17:22:31,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:22:31,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 17:22:31,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:31,776 INFO L225 Difference]: With dead ends: 125 [2022-10-16 17:22:31,776 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 17:22:31,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 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 17:22:31,777 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 26 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:31,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 17 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:22:31,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 17:22:31,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-10-16 17:22:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 115 states have (on average 1.2782608695652173) internal successors, (147), 123 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:31,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 147 transitions. [2022-10-16 17:22:31,800 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 147 transitions. Word has length 24 [2022-10-16 17:22:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:31,801 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 147 transitions. [2022-10-16 17:22:31,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:31,801 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 147 transitions. [2022-10-16 17:22:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:22:31,802 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:31,802 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:31,843 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 17:22:32,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 17:22:32,018 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:32,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2003907008, now seen corresponding path program 1 times [2022-10-16 17:22:32,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:32,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696913474] [2022-10-16 17:22:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:32,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:32,028 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:32,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1322675807] [2022-10-16 17:22:32,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:32,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:32,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:32,030 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 17:22:32,052 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 17:22:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:32,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 17:22:32,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:32,228 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:32,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:32,313 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:32,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:32,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696913474] [2022-10-16 17:22:32,314 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:32,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322675807] [2022-10-16 17:22:32,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322675807] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:32,314 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:32,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-10-16 17:22:32,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755857598] [2022-10-16 17:22:32,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:32,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 17:22:32,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:32,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 17:22:32,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:22:32,316 INFO L87 Difference]: Start difference. First operand 124 states and 147 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 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 17:22:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:32,785 INFO L93 Difference]: Finished difference Result 154 states and 178 transitions. [2022-10-16 17:22:32,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:22:32,786 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 17:22:32,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:32,787 INFO L225 Difference]: With dead ends: 154 [2022-10-16 17:22:32,787 INFO L226 Difference]: Without dead ends: 153 [2022-10-16 17:22:32,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:22:32,789 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 153 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:32,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 18 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:22:32,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-10-16 17:22:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 123. [2022-10-16 17:22:32,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 115 states have (on average 1.2608695652173914) internal successors, (145), 122 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:32,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2022-10-16 17:22:32,800 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 24 [2022-10-16 17:22:32,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:32,800 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2022-10-16 17:22:32,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 11 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 17:22:32,801 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2022-10-16 17:22:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 17:22:32,802 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:32,802 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:32,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:33,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 17:22:33,016 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:33,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:33,017 INFO L85 PathProgramCache]: Analyzing trace with hash -118818384, now seen corresponding path program 1 times [2022-10-16 17:22:33,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:33,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011236034] [2022-10-16 17:22:33,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:33,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:33,025 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:33,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721625237] [2022-10-16 17:22:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:33,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:33,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:33,027 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:33,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 17:22:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:33,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:22:33,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:33,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:33,375 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 17:22:33,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:33,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011236034] [2022-10-16 17:22:33,376 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:33,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721625237] [2022-10-16 17:22:33,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721625237] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:33,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:33,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2022-10-16 17:22:33,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191396736] [2022-10-16 17:22:33,377 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:33,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 17:22:33,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:33,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 17:22:33,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:22:33,379 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:33,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:33,529 INFO L93 Difference]: Finished difference Result 128 states and 147 transitions. [2022-10-16 17:22:33,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 17:22:33,530 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 17:22:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:33,531 INFO L225 Difference]: With dead ends: 128 [2022-10-16 17:22:33,531 INFO L226 Difference]: Without dead ends: 127 [2022-10-16 17:22:33,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:22:33,532 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 74 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:33,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 22 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 127 Invalid, 0 Unknown, 33 Unchecked, 0.1s Time] [2022-10-16 17:22:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-10-16 17:22:33,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2022-10-16 17:22:33,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 122 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:33,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2022-10-16 17:22:33,542 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 25 [2022-10-16 17:22:33,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:33,542 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2022-10-16 17:22:33,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:33,543 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2022-10-16 17:22:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 17:22:33,544 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:33,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:33,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:33,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 17:22:33,760 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:33,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:33,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1991575162, now seen corresponding path program 1 times [2022-10-16 17:22:33,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:33,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249782641] [2022-10-16 17:22:33,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:33,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:33,770 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:33,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518793705] [2022-10-16 17:22:33,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:33,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:33,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:33,771 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:33,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 17:22:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:33,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:22:33,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:33,923 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:33,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:22:33,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:33,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249782641] [2022-10-16 17:22:33,924 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:33,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518793705] [2022-10-16 17:22:33,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518793705] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:22:33,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:22:33,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:22:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098932298] [2022-10-16 17:22:33,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:22:33,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:22:33,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:33,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:22:33,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:33,926 INFO L87 Difference]: Start difference. First operand 123 states and 141 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:34,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:34,011 INFO L93 Difference]: Finished difference Result 154 states and 174 transitions. [2022-10-16 17:22:34,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:22:34,012 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 17:22:34,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:34,013 INFO L225 Difference]: With dead ends: 154 [2022-10-16 17:22:34,013 INFO L226 Difference]: Without dead ends: 153 [2022-10-16 17:22:34,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:22:34,014 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 52 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:34,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 22 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:34,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-10-16 17:22:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 122. [2022-10-16 17:22:34,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 115 states have (on average 1.208695652173913) internal successors, (139), 121 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2022-10-16 17:22:34,024 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 25 [2022-10-16 17:22:34,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:34,025 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2022-10-16 17:22:34,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:34,025 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2022-10-16 17:22:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:22:34,026 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:34,026 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:34,065 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:34,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 17:22:34,232 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1779651986, now seen corresponding path program 1 times [2022-10-16 17:22:34,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:34,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343212639] [2022-10-16 17:22:34,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:34,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:34,241 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:34,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868344770] [2022-10-16 17:22:34,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:34,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:34,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:34,243 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:34,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 17:22:34,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:34,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:22:34,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:34,311 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:34,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:34,348 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:34,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:34,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343212639] [2022-10-16 17:22:34,348 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:34,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868344770] [2022-10-16 17:22:34,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868344770] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:34,349 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:34,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:22:34,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929073512] [2022-10-16 17:22:34,349 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:34,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:22:34,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:34,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:22:34,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:34,351 INFO L87 Difference]: Start difference. First operand 122 states and 139 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:34,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:34,434 INFO L93 Difference]: Finished difference Result 225 states and 260 transitions. [2022-10-16 17:22:34,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:22:34,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 17:22:34,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:34,437 INFO L225 Difference]: With dead ends: 225 [2022-10-16 17:22:34,437 INFO L226 Difference]: Without dead ends: 223 [2022-10-16 17:22:34,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:34,438 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 54 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:34,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 52 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:34,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-10-16 17:22:34,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 205. [2022-10-16 17:22:34,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 199 states have (on average 1.1658291457286432) internal successors, (232), 204 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:34,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 232 transitions. [2022-10-16 17:22:34,456 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 232 transitions. Word has length 27 [2022-10-16 17:22:34,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:34,457 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 232 transitions. [2022-10-16 17:22:34,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:34,458 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 232 transitions. [2022-10-16 17:22:34,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 17:22:34,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:34,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:22:34,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:34,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:34,677 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:34,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:34,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1672476291, now seen corresponding path program 1 times [2022-10-16 17:22:34,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:34,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101123454] [2022-10-16 17:22:34,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:34,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:34,687 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:34,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103207382] [2022-10-16 17:22:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:34,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:34,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:34,689 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:34,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 17:22:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:34,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:22:34,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:34,781 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:34,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:34,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:34,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101123454] [2022-10-16 17:22:34,828 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:34,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103207382] [2022-10-16 17:22:34,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103207382] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:34,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:34,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:22:34,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382380878] [2022-10-16 17:22:34,829 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:34,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:22:34,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:34,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:22:34,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:34,830 INFO L87 Difference]: Start difference. First operand 205 states and 232 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 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 17:22:34,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:34,888 INFO L93 Difference]: Finished difference Result 282 states and 318 transitions. [2022-10-16 17:22:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:22:34,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 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 33 [2022-10-16 17:22:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:34,891 INFO L225 Difference]: With dead ends: 282 [2022-10-16 17:22:34,891 INFO L226 Difference]: Without dead ends: 280 [2022-10-16 17:22:34,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:34,892 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 29 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:34,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 88 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:22:34,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2022-10-16 17:22:34,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 275. [2022-10-16 17:22:34,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 269 states have (on average 1.137546468401487) internal successors, (306), 274 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:34,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 306 transitions. [2022-10-16 17:22:34,911 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 306 transitions. Word has length 33 [2022-10-16 17:22:34,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:34,912 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 306 transitions. [2022-10-16 17:22:34,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 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 17:22:34,912 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 306 transitions. [2022-10-16 17:22:34,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 17:22:34,913 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:34,913 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:34,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:35,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:22:35,127 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:35,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:35,128 INFO L85 PathProgramCache]: Analyzing trace with hash 351011963, now seen corresponding path program 1 times [2022-10-16 17:22:35,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:35,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564691951] [2022-10-16 17:22:35,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:35,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:35,137 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:35,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354818273] [2022-10-16 17:22:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:35,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:35,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:35,139 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:35,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 17:22:35,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:35,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:22:35,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:35,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:35,887 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:35,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:35,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564691951] [2022-10-16 17:22:35,888 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:35,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354818273] [2022-10-16 17:22:35,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354818273] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:35,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:35,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-10-16 17:22:35,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706200851] [2022-10-16 17:22:35,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:35,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 17:22:35,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:35,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 17:22:35,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:22:35,890 INFO L87 Difference]: Start difference. First operand 275 states and 306 transitions. Second operand has 11 states, 10 states have (on average 6.8) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:36,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:36,059 INFO L93 Difference]: Finished difference Result 316 states and 351 transitions. [2022-10-16 17:22:36,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 17:22:36,060 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 17:22:36,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:36,062 INFO L225 Difference]: With dead ends: 316 [2022-10-16 17:22:36,062 INFO L226 Difference]: Without dead ends: 315 [2022-10-16 17:22:36,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:22:36,063 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 70 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:36,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 66 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 117 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-10-16 17:22:36,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-10-16 17:22:36,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 312. [2022-10-16 17:22:36,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 306 states have (on average 1.1372549019607843) internal successors, (348), 311 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 348 transitions. [2022-10-16 17:22:36,085 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 348 transitions. Word has length 35 [2022-10-16 17:22:36,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:36,085 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 348 transitions. [2022-10-16 17:22:36,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.8) internal successors, (68), 11 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:36,086 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 348 transitions. [2022-10-16 17:22:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 17:22:36,086 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:36,086 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:22:36,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:36,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 17:22:36,302 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:36,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:36,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1827922747, now seen corresponding path program 2 times [2022-10-16 17:22:36,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:36,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188322225] [2022-10-16 17:22:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:36,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:36,311 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:36,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1160516376] [2022-10-16 17:22:36,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:22:36,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:36,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:36,313 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:36,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 17:22:36,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:22:36,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:36,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:22:36,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:36,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:36,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:36,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188322225] [2022-10-16 17:22:36,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:36,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160516376] [2022-10-16 17:22:36,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160516376] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:36,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:36,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 17:22:36,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072880356] [2022-10-16 17:22:36,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:36,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:22:36,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:36,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:22:36,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:22:36,774 INFO L87 Difference]: Start difference. First operand 312 states and 348 transitions. Second operand has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:36,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:36,905 INFO L93 Difference]: Finished difference Result 488 states and 545 transitions. [2022-10-16 17:22:36,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:22:36,906 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 17:22:36,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:36,909 INFO L225 Difference]: With dead ends: 488 [2022-10-16 17:22:36,909 INFO L226 Difference]: Without dead ends: 486 [2022-10-16 17:22:36,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:22:36,910 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 62 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:36,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 145 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 102 Unchecked, 0.1s Time] [2022-10-16 17:22:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-10-16 17:22:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 469. [2022-10-16 17:22:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 463 states have (on average 1.1382289416846652) internal successors, (527), 468 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:36,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 527 transitions. [2022-10-16 17:22:36,958 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 527 transitions. Word has length 35 [2022-10-16 17:22:36,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:36,959 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 527 transitions. [2022-10-16 17:22:36,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:36,959 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 527 transitions. [2022-10-16 17:22:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 17:22:36,960 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:36,960 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:37,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:37,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 17:22:37,173 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:37,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:37,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1320983192, now seen corresponding path program 1 times [2022-10-16 17:22:37,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:37,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774163479] [2022-10-16 17:22:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:37,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:37,182 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:37,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220598644] [2022-10-16 17:22:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:37,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:37,183 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:37,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 17:22:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:37,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 17:22:37,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:37,271 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:22:37,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:22:37,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:37,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774163479] [2022-10-16 17:22:37,331 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:37,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220598644] [2022-10-16 17:22:37,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220598644] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:37,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:37,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 17:22:37,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77248653] [2022-10-16 17:22:37,334 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:37,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:22:37,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:37,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:22:37,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:37,335 INFO L87 Difference]: Start difference. First operand 469 states and 527 transitions. Second operand has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:37,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:37,526 INFO L93 Difference]: Finished difference Result 730 states and 819 transitions. [2022-10-16 17:22:37,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:22:37,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 45 [2022-10-16 17:22:37,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:37,531 INFO L225 Difference]: With dead ends: 730 [2022-10-16 17:22:37,531 INFO L226 Difference]: Without dead ends: 729 [2022-10-16 17:22:37,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:37,533 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 45 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:37,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 78 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:22:37,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2022-10-16 17:22:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 712. [2022-10-16 17:22:37,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 706 states have (on average 1.1487252124645893) internal successors, (811), 711 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 811 transitions. [2022-10-16 17:22:37,574 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 811 transitions. Word has length 45 [2022-10-16 17:22:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:37,574 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 811 transitions. [2022-10-16 17:22:37,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.6) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 811 transitions. [2022-10-16 17:22:37,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 17:22:37,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:37,576 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:37,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:37,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 17:22:37,789 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:37,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:37,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1346224730, now seen corresponding path program 2 times [2022-10-16 17:22:37,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:37,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044716450] [2022-10-16 17:22:37,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:37,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:37,800 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:37,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [279547911] [2022-10-16 17:22:37,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:22:37,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:37,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:37,802 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:37,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 17:22:37,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:22:37,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:37,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:22:37,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:37,935 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:37,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 21 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:38,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:38,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044716450] [2022-10-16 17:22:38,005 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:38,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279547911] [2022-10-16 17:22:38,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279547911] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:38,005 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:38,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2022-10-16 17:22:38,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022269672] [2022-10-16 17:22:38,006 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:38,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:22:38,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:38,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:22:38,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:22:38,007 INFO L87 Difference]: Start difference. First operand 712 states and 811 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 17:22:38,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:38,166 INFO L93 Difference]: Finished difference Result 1135 states and 1305 transitions. [2022-10-16 17:22:38,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:22:38,167 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 50 [2022-10-16 17:22:38,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:38,171 INFO L225 Difference]: With dead ends: 1135 [2022-10-16 17:22:38,171 INFO L226 Difference]: Without dead ends: 857 [2022-10-16 17:22:38,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 90 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-10-16 17:22:38,174 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 63 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:38,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 75 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:38,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-10-16 17:22:38,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 691. [2022-10-16 17:22:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 691 states, 685 states have (on average 1.1416058394160584) internal successors, (782), 690 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:38,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 782 transitions. [2022-10-16 17:22:38,242 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 782 transitions. Word has length 50 [2022-10-16 17:22:38,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:38,242 INFO L495 AbstractCegarLoop]: Abstraction has 691 states and 782 transitions. [2022-10-16 17:22:38,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 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 17:22:38,243 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 782 transitions. [2022-10-16 17:22:38,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 17:22:38,243 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:38,243 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:38,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:38,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:38,460 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:38,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1002620174, now seen corresponding path program 1 times [2022-10-16 17:22:38,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:38,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456027192] [2022-10-16 17:22:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:38,471 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:38,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008016949] [2022-10-16 17:22:38,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:38,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:38,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:38,472 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:38,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 17:22:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:38,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:22:38,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:38,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:38,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:38,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456027192] [2022-10-16 17:22:38,733 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:38,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008016949] [2022-10-16 17:22:38,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008016949] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:38,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:38,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:22:38,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820677783] [2022-10-16 17:22:38,734 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:38,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:22:38,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:38,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:22:38,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:38,735 INFO L87 Difference]: Start difference. First operand 691 states and 782 transitions. Second operand has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:39,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:39,391 INFO L93 Difference]: Finished difference Result 1258 states and 1446 transitions. [2022-10-16 17:22:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 17:22:39,392 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 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 52 [2022-10-16 17:22:39,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:39,398 INFO L225 Difference]: With dead ends: 1258 [2022-10-16 17:22:39,398 INFO L226 Difference]: Without dead ends: 1257 [2022-10-16 17:22:39,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:22:39,401 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 275 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:39,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 31 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:22:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2022-10-16 17:22:39,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1218. [2022-10-16 17:22:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1212 states have (on average 1.1295379537953796) internal successors, (1369), 1217 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1369 transitions. [2022-10-16 17:22:39,517 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1369 transitions. Word has length 52 [2022-10-16 17:22:39,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:39,517 INFO L495 AbstractCegarLoop]: Abstraction has 1218 states and 1369 transitions. [2022-10-16 17:22:39,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.272727272727273) internal successors, (102), 12 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:39,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1369 transitions. [2022-10-16 17:22:39,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 17:22:39,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:39,519 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:22:39,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:39,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:39,733 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:39,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:39,734 INFO L85 PathProgramCache]: Analyzing trace with hash 770904273, now seen corresponding path program 3 times [2022-10-16 17:22:39,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:39,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225370850] [2022-10-16 17:22:39,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:39,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:39,743 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:39,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629507731] [2022-10-16 17:22:39,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:22:39,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:39,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:39,745 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:39,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 17:22:39,792 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 17:22:39,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:39,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:22:39,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:22:39,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:22:42,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:42,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225370850] [2022-10-16 17:22:42,445 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:42,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629507731] [2022-10-16 17:22:42,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629507731] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:42,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:42,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:22:42,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846397313] [2022-10-16 17:22:42,446 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:42,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:22:42,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:42,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:22:42,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=95, Unknown=1, NotChecked=0, Total=132 [2022-10-16 17:22:42,447 INFO L87 Difference]: Start difference. First operand 1218 states and 1369 transitions. Second operand has 12 states, 11 states have (on average 9.818181818181818) internal successors, (108), 12 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:51,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:51,600 INFO L93 Difference]: Finished difference Result 1445 states and 1614 transitions. [2022-10-16 17:22:51,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 17:22:51,600 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.818181818181818) internal successors, (108), 12 states have internal predecessors, (108), 0 states have call successors, (0), 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 65 [2022-10-16 17:22:51,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:51,608 INFO L225 Difference]: With dead ends: 1445 [2022-10-16 17:22:51,608 INFO L226 Difference]: Without dead ends: 1444 [2022-10-16 17:22:51,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=156, Invalid=439, Unknown=5, NotChecked=0, Total=600 [2022-10-16 17:22:51,610 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 183 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 301 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:51,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 141 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 301 Unchecked, 0.1s Time] [2022-10-16 17:22:51,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1444 states. [2022-10-16 17:22:51,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1444 to 1405. [2022-10-16 17:22:51,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1399 states have (on average 1.1315225160829163) internal successors, (1583), 1404 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:51,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1583 transitions. [2022-10-16 17:22:51,705 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1583 transitions. Word has length 65 [2022-10-16 17:22:51,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:51,705 INFO L495 AbstractCegarLoop]: Abstraction has 1405 states and 1583 transitions. [2022-10-16 17:22:51,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.818181818181818) internal successors, (108), 12 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1583 transitions. [2022-10-16 17:22:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 17:22:51,707 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:51,707 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 17:22:51,738 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:51,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:51,922 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:51,923 INFO L85 PathProgramCache]: Analyzing trace with hash -355923565, now seen corresponding path program 2 times [2022-10-16 17:22:51,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:51,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117549368] [2022-10-16 17:22:51,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:51,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:51,936 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:51,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598944599] [2022-10-16 17:22:51,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:22:51,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:51,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:51,938 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:51,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 17:22:51,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:22:51,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:51,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:22:51,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:52,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:52,215 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:52,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:52,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117549368] [2022-10-16 17:22:52,215 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:52,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598944599] [2022-10-16 17:22:52,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598944599] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:52,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:52,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:22:52,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005851893] [2022-10-16 17:22:52,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:52,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:22:52,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:52,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:22:52,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:52,218 INFO L87 Difference]: Start difference. First operand 1405 states and 1583 transitions. Second operand has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:52,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:52,495 INFO L93 Difference]: Finished difference Result 2292 states and 2648 transitions. [2022-10-16 17:22:52,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:22:52,496 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-16 17:22:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:52,506 INFO L225 Difference]: With dead ends: 2292 [2022-10-16 17:22:52,507 INFO L226 Difference]: Without dead ends: 2291 [2022-10-16 17:22:52,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:52,508 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 126 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:52,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 103 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:52,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2022-10-16 17:22:52,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2150. [2022-10-16 17:22:52,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 2144 states have (on average 1.1529850746268657) internal successors, (2472), 2149 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 2472 transitions. [2022-10-16 17:22:52,668 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 2472 transitions. Word has length 72 [2022-10-16 17:22:52,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:52,668 INFO L495 AbstractCegarLoop]: Abstraction has 2150 states and 2472 transitions. [2022-10-16 17:22:52,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 2472 transitions. [2022-10-16 17:22:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 17:22:52,670 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:52,670 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 17:22:52,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:52,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:52,885 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:52,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:52,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2077112238, now seen corresponding path program 1 times [2022-10-16 17:22:52,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:52,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414940449] [2022-10-16 17:22:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:52,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:52,895 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:52,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1236823979] [2022-10-16 17:22:52,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:52,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:52,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:52,896 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:52,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 17:22:52,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:22:52,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:22:52,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:53,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:53,175 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:53,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:53,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414940449] [2022-10-16 17:22:53,176 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:53,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236823979] [2022-10-16 17:22:53,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236823979] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:53,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:53,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2022-10-16 17:22:53,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34870394] [2022-10-16 17:22:53,177 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:53,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:22:53,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:53,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:22:53,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:53,178 INFO L87 Difference]: Start difference. First operand 2150 states and 2472 transitions. Second operand has 12 states, 11 states have (on average 13.454545454545455) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:53,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:53,742 INFO L93 Difference]: Finished difference Result 3245 states and 3735 transitions. [2022-10-16 17:22:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 17:22:53,743 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.454545454545455) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-10-16 17:22:53,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:53,758 INFO L225 Difference]: With dead ends: 3245 [2022-10-16 17:22:53,758 INFO L226 Difference]: Without dead ends: 3244 [2022-10-16 17:22:53,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:53,760 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 172 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:53,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 163 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:22:53,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2022-10-16 17:22:53,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 3197. [2022-10-16 17:22:53,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3197 states, 3191 states have (on average 1.1667188968975244) internal successors, (3723), 3196 states have internal predecessors, (3723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:53,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 3723 transitions. [2022-10-16 17:22:53,945 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 3723 transitions. Word has length 75 [2022-10-16 17:22:53,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:53,945 INFO L495 AbstractCegarLoop]: Abstraction has 3197 states and 3723 transitions. [2022-10-16 17:22:53,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.454545454545455) internal successors, (148), 12 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 3723 transitions. [2022-10-16 17:22:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 17:22:53,951 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:53,951 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2022-10-16 17:22:53,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 17:22:54,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:54,166 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:54,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:54,167 INFO L85 PathProgramCache]: Analyzing trace with hash -550181436, now seen corresponding path program 2 times [2022-10-16 17:22:54,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:54,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407209038] [2022-10-16 17:22:54,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:54,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:54,176 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:54,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [554487062] [2022-10-16 17:22:54,177 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:22:54,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:54,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:54,178 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:54,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 17:22:54,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:22:54,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:54,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 17:22:54,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 16 proven. 28 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 17:22:54,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-10-16 17:22:54,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:54,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407209038] [2022-10-16 17:22:54,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:54,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554487062] [2022-10-16 17:22:54,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554487062] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:54,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:54,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2022-10-16 17:22:54,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197828491] [2022-10-16 17:22:54,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:54,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:22:54,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:54,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:22:54,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:22:54,458 INFO L87 Difference]: Start difference. First operand 3197 states and 3723 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 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 17:22:54,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:54,707 INFO L93 Difference]: Finished difference Result 3197 states and 3723 transitions. [2022-10-16 17:22:54,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:22:54,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-10-16 17:22:54,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:54,726 INFO L225 Difference]: With dead ends: 3197 [2022-10-16 17:22:54,726 INFO L226 Difference]: Without dead ends: 3195 [2022-10-16 17:22:54,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:22:54,729 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 45 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:54,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 16 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2022-10-16 17:22:54,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3195. [2022-10-16 17:22:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 3191 states have (on average 1.1043560012535256) internal successors, (3524), 3194 states have internal predecessors, (3524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 3524 transitions. [2022-10-16 17:22:54,951 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 3524 transitions. Word has length 78 [2022-10-16 17:22:54,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:54,951 INFO L495 AbstractCegarLoop]: Abstraction has 3195 states and 3524 transitions. [2022-10-16 17:22:54,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 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 17:22:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 3524 transitions. [2022-10-16 17:22:54,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 17:22:54,953 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:54,953 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:22:54,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:55,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:55,166 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:55,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:55,167 INFO L85 PathProgramCache]: Analyzing trace with hash -844168014, now seen corresponding path program 4 times [2022-10-16 17:22:55,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:55,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330096871] [2022-10-16 17:22:55,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:55,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:55,176 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:55,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1604530407] [2022-10-16 17:22:55,176 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:22:55,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:55,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:55,177 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:55,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 17:22:55,221 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:22:55,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:55,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:22:55,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:55,352 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 81 proven. 44 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 17:22:55,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:55,462 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 33 proven. 92 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-16 17:22:55,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:55,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330096871] [2022-10-16 17:22:55,462 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:55,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604530407] [2022-10-16 17:22:55,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604530407] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:55,463 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:55,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-10-16 17:22:55,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824186059] [2022-10-16 17:22:55,463 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:55,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 17:22:55,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 17:22:55,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:22:55,467 INFO L87 Difference]: Start difference. First operand 3195 states and 3524 transitions. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:55,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:55,742 INFO L93 Difference]: Finished difference Result 5754 states and 6409 transitions. [2022-10-16 17:22:55,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:22:55,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 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 80 [2022-10-16 17:22:55,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:55,758 INFO L225 Difference]: With dead ends: 5754 [2022-10-16 17:22:55,758 INFO L226 Difference]: Without dead ends: 3915 [2022-10-16 17:22:55,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 150 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:22:55,764 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 39 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:55,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 60 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:22:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2022-10-16 17:22:55,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 2769. [2022-10-16 17:22:55,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2765 states have (on average 1.1023508137432187) internal successors, (3048), 2768 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3048 transitions. [2022-10-16 17:22:55,905 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3048 transitions. Word has length 80 [2022-10-16 17:22:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:55,905 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 3048 transitions. [2022-10-16 17:22:55,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3048 transitions. [2022-10-16 17:22:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-10-16 17:22:55,908 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:55,908 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2022-10-16 17:22:55,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:56,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 17:22:56,123 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:56,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:56,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1271864572, now seen corresponding path program 3 times [2022-10-16 17:22:56,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:56,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603636641] [2022-10-16 17:22:56,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:56,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:56,133 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:56,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [310218022] [2022-10-16 17:22:56,134 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:22:56,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:56,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:56,135 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:56,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 17:22:56,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 17:22:56,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:56,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:22:56,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:56,233 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 17:22:56,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:58,579 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 72 proven. 4 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 17:22:58,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:58,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603636641] [2022-10-16 17:22:58,579 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:58,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310218022] [2022-10-16 17:22:58,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310218022] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:58,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:58,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 17:22:58,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386303577] [2022-10-16 17:22:58,580 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:58,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:22:58,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:58,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:22:58,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:22:58,581 INFO L87 Difference]: Start difference. First operand 2769 states and 3048 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:58,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:22:58,806 INFO L93 Difference]: Finished difference Result 2853 states and 3134 transitions. [2022-10-16 17:22:58,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:22:58,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 80 [2022-10-16 17:22:58,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:22:58,815 INFO L225 Difference]: With dead ends: 2853 [2022-10-16 17:22:58,815 INFO L226 Difference]: Without dead ends: 2580 [2022-10-16 17:22:58,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:22:58,818 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 44 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 89 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:22:58,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 89 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 89 Unchecked, 0.1s Time] [2022-10-16 17:22:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2022-10-16 17:22:58,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2022-10-16 17:22:58,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2579 states, 2575 states have (on average 1.102135922330097) internal successors, (2838), 2578 states have internal predecessors, (2838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:58,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 2838 transitions. [2022-10-16 17:22:58,970 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 2838 transitions. Word has length 80 [2022-10-16 17:22:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:22:58,970 INFO L495 AbstractCegarLoop]: Abstraction has 2579 states and 2838 transitions. [2022-10-16 17:22:58,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:22:58,971 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 2838 transitions. [2022-10-16 17:22:58,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-16 17:22:58,972 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:22:58,972 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:22:59,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 17:22:59,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 17:22:59,188 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:22:59,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:22:59,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1854318543, now seen corresponding path program 5 times [2022-10-16 17:22:59,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:22:59,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887054501] [2022-10-16 17:22:59,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:22:59,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:22:59,198 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:22:59,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997406371] [2022-10-16 17:22:59,199 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:22:59,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:22:59,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:22:59,200 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:22:59,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 17:22:59,250 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-10-16 17:22:59,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:22:59,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:22:59,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:22:59,459 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 94 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:59,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:22:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 94 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:22:59,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:22:59,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887054501] [2022-10-16 17:22:59,642 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:22:59,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997406371] [2022-10-16 17:22:59,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997406371] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:22:59,642 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:22:59,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-10-16 17:22:59,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984829415] [2022-10-16 17:22:59,643 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:22:59,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:22:59,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:22:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:22:59,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:22:59,645 INFO L87 Difference]: Start difference. First operand 2579 states and 2838 transitions. Second operand has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:00,573 INFO L93 Difference]: Finished difference Result 7083 states and 7901 transitions. [2022-10-16 17:23:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:23:00,573 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 0 states have call successors, (0), 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 95 [2022-10-16 17:23:00,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:00,590 INFO L225 Difference]: With dead ends: 7083 [2022-10-16 17:23:00,590 INFO L226 Difference]: Without dead ends: 5546 [2022-10-16 17:23:00,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=228, Invalid=528, Unknown=0, NotChecked=0, Total=756 [2022-10-16 17:23:00,593 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 354 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:00,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 145 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 17:23:00,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5546 states. [2022-10-16 17:23:00,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5546 to 3105. [2022-10-16 17:23:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3105 states, 3101 states have (on average 1.1015801354401806) internal successors, (3416), 3104 states have internal predecessors, (3416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:00,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3105 states to 3105 states and 3416 transitions. [2022-10-16 17:23:00,801 INFO L78 Accepts]: Start accepts. Automaton has 3105 states and 3416 transitions. Word has length 95 [2022-10-16 17:23:00,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:00,801 INFO L495 AbstractCegarLoop]: Abstraction has 3105 states and 3416 transitions. [2022-10-16 17:23:00,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.466666666666667) internal successors, (172), 15 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:00,802 INFO L276 IsEmpty]: Start isEmpty. Operand 3105 states and 3416 transitions. [2022-10-16 17:23:00,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 17:23:00,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:00,804 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2022-10-16 17:23:00,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:01,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 17:23:01,018 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:01,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:01,019 INFO L85 PathProgramCache]: Analyzing trace with hash -2032563864, now seen corresponding path program 2 times [2022-10-16 17:23:01,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:01,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564504058] [2022-10-16 17:23:01,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:01,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:01,029 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:01,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75572517] [2022-10-16 17:23:01,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:01,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:01,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:01,031 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:01,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 17:23:01,077 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:23:01,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:01,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:23:01,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:01,348 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 343 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:01,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 343 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:01,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:01,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564504058] [2022-10-16 17:23:01,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:01,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75572517] [2022-10-16 17:23:01,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75572517] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:01,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:01,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2022-10-16 17:23:01,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119252795] [2022-10-16 17:23:01,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:01,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 17:23:01,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:01,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 17:23:01,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=222, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:23:01,711 INFO L87 Difference]: Start difference. First operand 3105 states and 3416 transitions. Second operand has 20 states, 19 states have (on average 11.68421052631579) internal successors, (222), 20 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:02,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:02,750 INFO L93 Difference]: Finished difference Result 3248 states and 3572 transitions. [2022-10-16 17:23:02,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-16 17:23:02,750 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.68421052631579) internal successors, (222), 20 states have internal predecessors, (222), 0 states have call successors, (0), 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 112 [2022-10-16 17:23:02,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:02,764 INFO L225 Difference]: With dead ends: 3248 [2022-10-16 17:23:02,764 INFO L226 Difference]: Without dead ends: 3247 [2022-10-16 17:23:02,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=393, Invalid=599, Unknown=0, NotChecked=0, Total=992 [2022-10-16 17:23:02,767 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 280 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:02,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 55 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-16 17:23:02,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3247 states. [2022-10-16 17:23:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3247 to 3220. [2022-10-16 17:23:02,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3220 states, 3216 states have (on average 1.1004353233830846) internal successors, (3539), 3219 states have internal predecessors, (3539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3539 transitions. [2022-10-16 17:23:02,964 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3539 transitions. Word has length 112 [2022-10-16 17:23:02,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:02,965 INFO L495 AbstractCegarLoop]: Abstraction has 3220 states and 3539 transitions. [2022-10-16 17:23:02,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.68421052631579) internal successors, (222), 20 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:02,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3539 transitions. [2022-10-16 17:23:02,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-10-16 17:23:02,967 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:02,968 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:03,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-10-16 17:23:03,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 17:23:03,181 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:03,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:03,183 INFO L85 PathProgramCache]: Analyzing trace with hash -44779726, now seen corresponding path program 2 times [2022-10-16 17:23:03,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:03,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787227904] [2022-10-16 17:23:03,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:03,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:03,192 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:03,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1450578071] [2022-10-16 17:23:03,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:03,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:03,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:03,193 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:03,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 17:23:03,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:23:03,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:03,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-16 17:23:03,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:03,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:03,848 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:03,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:03,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787227904] [2022-10-16 17:23:03,849 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:03,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450578071] [2022-10-16 17:23:03,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450578071] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:03,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:03,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2022-10-16 17:23:03,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073040344] [2022-10-16 17:23:03,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:03,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 17:23:03,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:03,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 17:23:03,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=246, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:23:03,851 INFO L87 Difference]: Start difference. First operand 3220 states and 3539 transitions. Second operand has 20 states, 19 states have (on average 11.68421052631579) internal successors, (222), 20 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:05,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:05,499 INFO L93 Difference]: Finished difference Result 7078 states and 7721 transitions. [2022-10-16 17:23:05,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-10-16 17:23:05,499 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.68421052631579) internal successors, (222), 20 states have internal predecessors, (222), 0 states have call successors, (0), 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 112 [2022-10-16 17:23:05,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:05,514 INFO L225 Difference]: With dead ends: 7078 [2022-10-16 17:23:05,514 INFO L226 Difference]: Without dead ends: 7077 [2022-10-16 17:23:05,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1038, Invalid=1932, Unknown=0, NotChecked=0, Total=2970 [2022-10-16 17:23:05,517 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 500 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:05,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 47 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 17:23:05,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7077 states. [2022-10-16 17:23:05,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7077 to 6944. [2022-10-16 17:23:05,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6944 states, 6940 states have (on average 1.0664265129682997) internal successors, (7401), 6943 states have internal predecessors, (7401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:05,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6944 states to 6944 states and 7401 transitions. [2022-10-16 17:23:05,884 INFO L78 Accepts]: Start accepts. Automaton has 6944 states and 7401 transitions. Word has length 112 [2022-10-16 17:23:05,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:05,885 INFO L495 AbstractCegarLoop]: Abstraction has 6944 states and 7401 transitions. [2022-10-16 17:23:05,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.68421052631579) internal successors, (222), 20 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:05,885 INFO L276 IsEmpty]: Start isEmpty. Operand 6944 states and 7401 transitions. [2022-10-16 17:23:05,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-10-16 17:23:05,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:05,896 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:23:05,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:06,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-10-16 17:23:06,110 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:06,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:06,111 INFO L85 PathProgramCache]: Analyzing trace with hash 3557905, now seen corresponding path program 6 times [2022-10-16 17:23:06,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:06,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795713446] [2022-10-16 17:23:06,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:06,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:06,122 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:06,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948665147] [2022-10-16 17:23:06,122 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 17:23:06,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:06,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:06,123 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:06,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 17:23:06,179 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-10-16 17:23:06,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:06,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 17:23:06,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-16 17:23:06,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:06,984 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 0 proven. 310 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-10-16 17:23:06,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:06,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795713446] [2022-10-16 17:23:06,985 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:06,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948665147] [2022-10-16 17:23:06,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948665147] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:06,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:06,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2022-10-16 17:23:06,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132590355] [2022-10-16 17:23:06,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:06,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:23:06,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:06,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:23:06,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:23:06,989 INFO L87 Difference]: Start difference. First operand 6944 states and 7401 transitions. Second operand has 16 states, 15 states have (on average 11.2) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:14,047 INFO L93 Difference]: Finished difference Result 9156 states and 9752 transitions. [2022-10-16 17:23:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 17:23:14,052 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.2) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 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 125 [2022-10-16 17:23:14,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:14,064 INFO L225 Difference]: With dead ends: 9156 [2022-10-16 17:23:14,065 INFO L226 Difference]: Without dead ends: 9154 [2022-10-16 17:23:14,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=481, Invalid=1241, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 17:23:14,068 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 528 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:14,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 233 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 17:23:14,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9154 states. [2022-10-16 17:23:14,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9154 to 8235. [2022-10-16 17:23:14,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8235 states, 8231 states have (on average 1.0668205564329971) internal successors, (8781), 8234 states have internal predecessors, (8781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:14,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8235 states to 8235 states and 8781 transitions. [2022-10-16 17:23:14,587 INFO L78 Accepts]: Start accepts. Automaton has 8235 states and 8781 transitions. Word has length 125 [2022-10-16 17:23:14,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:14,588 INFO L495 AbstractCegarLoop]: Abstraction has 8235 states and 8781 transitions. [2022-10-16 17:23:14,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.2) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:14,588 INFO L276 IsEmpty]: Start isEmpty. Operand 8235 states and 8781 transitions. [2022-10-16 17:23:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-16 17:23:14,594 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:14,594 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-10-16 17:23:14,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:14,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:14,808 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:14,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:14,809 INFO L85 PathProgramCache]: Analyzing trace with hash 674979377, now seen corresponding path program 7 times [2022-10-16 17:23:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:14,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265158655] [2022-10-16 17:23:14,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:14,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:14,823 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:14,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1918281086] [2022-10-16 17:23:14,824 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 17:23:14,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:14,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:14,825 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:14,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 17:23:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:23:14,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:23:14,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 341 proven. 200 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 17:23:15,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:15,308 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 265 proven. 276 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-10-16 17:23:15,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265158655] [2022-10-16 17:23:15,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918281086] [2022-10-16 17:23:15,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918281086] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:15,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:15,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2022-10-16 17:23:15,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590863880] [2022-10-16 17:23:15,309 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:15,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 17:23:15,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:15,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 17:23:15,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:23:15,310 INFO L87 Difference]: Start difference. First operand 8235 states and 8781 transitions. Second operand has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:15,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:15,905 INFO L93 Difference]: Finished difference Result 9128 states and 9696 transitions. [2022-10-16 17:23:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 17:23:15,905 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2022-10-16 17:23:15,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:15,918 INFO L225 Difference]: With dead ends: 9128 [2022-10-16 17:23:15,918 INFO L226 Difference]: Without dead ends: 6990 [2022-10-16 17:23:15,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 296 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:23:15,925 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 50 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:15,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 116 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 17:23:15,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6990 states. [2022-10-16 17:23:16,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6990 to 6651. [2022-10-16 17:23:16,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 6647 states have (on average 1.0654430570182036) internal successors, (7082), 6650 states have internal predecessors, (7082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:16,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 7082 transitions. [2022-10-16 17:23:16,375 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 7082 transitions. Word has length 155 [2022-10-16 17:23:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:16,375 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 7082 transitions. [2022-10-16 17:23:16,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 7082 transitions. [2022-10-16 17:23:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2022-10-16 17:23:16,379 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:16,380 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2022-10-16 17:23:16,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:16,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:16,594 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:16,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:16,595 INFO L85 PathProgramCache]: Analyzing trace with hash 987453139, now seen corresponding path program 8 times [2022-10-16 17:23:16,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:16,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091245038] [2022-10-16 17:23:16,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:16,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:16,606 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:16,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [429989313] [2022-10-16 17:23:16,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:16,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:16,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:16,608 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:16,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 17:23:16,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:23:16,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:16,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 17:23:16,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 17:23:17,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-16 17:23:20,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:20,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091245038] [2022-10-16 17:23:20,632 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:20,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429989313] [2022-10-16 17:23:20,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429989313] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:20,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:20,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2022-10-16 17:23:20,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478084124] [2022-10-16 17:23:20,633 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:20,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:23:20,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:20,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:23:20,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=202, Unknown=1, NotChecked=0, Total=306 [2022-10-16 17:23:20,635 INFO L87 Difference]: Start difference. First operand 6651 states and 7082 transitions. Second operand has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 18 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:21,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:21,296 INFO L93 Difference]: Finished difference Result 7553 states and 8019 transitions. [2022-10-16 17:23:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 17:23:21,297 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 18 states have internal predecessors, (228), 0 states have call successors, (0), 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 155 [2022-10-16 17:23:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:21,308 INFO L225 Difference]: With dead ends: 7553 [2022-10-16 17:23:21,308 INFO L226 Difference]: Without dead ends: 7552 [2022-10-16 17:23:21,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=165, Invalid=386, Unknown=1, NotChecked=0, Total=552 [2022-10-16 17:23:21,311 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 263 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 430 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:21,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 198 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 188 Invalid, 0 Unknown, 430 Unchecked, 0.2s Time] [2022-10-16 17:23:21,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2022-10-16 17:23:21,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 6651. [2022-10-16 17:23:21,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 6647 states have (on average 1.0645403941627802) internal successors, (7076), 6650 states have internal predecessors, (7076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:21,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 7076 transitions. [2022-10-16 17:23:21,816 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 7076 transitions. Word has length 155 [2022-10-16 17:23:21,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:21,816 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 7076 transitions. [2022-10-16 17:23:21,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 13.411764705882353) internal successors, (228), 18 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:21,817 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 7076 transitions. [2022-10-16 17:23:21,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-10-16 17:23:21,821 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:21,821 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-10-16 17:23:21,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:22,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:22,036 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:22,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:22,037 INFO L85 PathProgramCache]: Analyzing trace with hash 872849395, now seen corresponding path program 3 times [2022-10-16 17:23:22,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:22,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305858978] [2022-10-16 17:23:22,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:22,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:22,049 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:22,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531078477] [2022-10-16 17:23:22,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:23:22,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:22,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:22,051 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:22,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 17:23:22,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 17:23:22,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:22,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:23:22,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:22,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:22,775 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:22,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:22,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305858978] [2022-10-16 17:23:22,775 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:22,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531078477] [2022-10-16 17:23:22,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531078477] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:22,776 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:22,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2022-10-16 17:23:22,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304150569] [2022-10-16 17:23:22,777 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:22,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:23:22,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:22,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:23:22,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:23:22,779 INFO L87 Difference]: Start difference. First operand 6651 states and 7076 transitions. Second operand has 24 states, 23 states have (on average 14.0) internal successors, (322), 24 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:23,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:23,579 INFO L93 Difference]: Finished difference Result 10282 states and 11266 transitions. [2022-10-16 17:23:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 17:23:23,579 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.0) internal successors, (322), 24 states have internal predecessors, (322), 0 states have call successors, (0), 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 162 [2022-10-16 17:23:23,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:23,595 INFO L225 Difference]: With dead ends: 10282 [2022-10-16 17:23:23,595 INFO L226 Difference]: Without dead ends: 10281 [2022-10-16 17:23:23,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:23:23,600 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 344 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:23,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 172 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:23:23,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10281 states. [2022-10-16 17:23:24,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10281 to 9691. [2022-10-16 17:23:24,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9691 states, 9687 states have (on average 1.0828946010116651) internal successors, (10490), 9690 states have internal predecessors, (10490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:24,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9691 states to 9691 states and 10490 transitions. [2022-10-16 17:23:24,219 INFO L78 Accepts]: Start accepts. Automaton has 9691 states and 10490 transitions. Word has length 162 [2022-10-16 17:23:24,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:24,220 INFO L495 AbstractCegarLoop]: Abstraction has 9691 states and 10490 transitions. [2022-10-16 17:23:24,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.0) internal successors, (322), 24 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:24,220 INFO L276 IsEmpty]: Start isEmpty. Operand 9691 states and 10490 transitions. [2022-10-16 17:23:24,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-10-16 17:23:24,225 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:24,225 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2022-10-16 17:23:24,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:24,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 17:23:24,437 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:24,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:24,438 INFO L85 PathProgramCache]: Analyzing trace with hash 824202674, now seen corresponding path program 2 times [2022-10-16 17:23:24,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:24,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777856551] [2022-10-16 17:23:24,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:24,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:24,452 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:24,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474877240] [2022-10-16 17:23:24,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:23:24,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:24,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:24,458 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:24,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 17:23:24,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:23:24,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:24,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:23:24,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:24,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:25,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:25,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777856551] [2022-10-16 17:23:25,214 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:25,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474877240] [2022-10-16 17:23:25,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474877240] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:25,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:25,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2022-10-16 17:23:25,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96384560] [2022-10-16 17:23:25,215 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:25,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:23:25,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:25,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:23:25,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:23:25,216 INFO L87 Difference]: Start difference. First operand 9691 states and 10490 transitions. Second operand has 24 states, 23 states have (on average 14.26086956521739) internal successors, (328), 24 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:27,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:27,567 INFO L93 Difference]: Finished difference Result 21542 states and 23383 transitions. [2022-10-16 17:23:27,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 17:23:27,568 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.26086956521739) internal successors, (328), 24 states have internal predecessors, (328), 0 states have call successors, (0), 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 165 [2022-10-16 17:23:27,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:27,590 INFO L225 Difference]: With dead ends: 21542 [2022-10-16 17:23:27,590 INFO L226 Difference]: Without dead ends: 21541 [2022-10-16 17:23:27,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:23:27,595 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 620 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:27,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 282 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 17:23:27,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21541 states. [2022-10-16 17:23:28,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21541 to 14887. [2022-10-16 17:23:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14887 states, 14883 states have (on average 1.0950749176913257) internal successors, (16298), 14886 states have internal predecessors, (16298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:28,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14887 states to 14887 states and 16298 transitions. [2022-10-16 17:23:28,279 INFO L78 Accepts]: Start accepts. Automaton has 14887 states and 16298 transitions. Word has length 165 [2022-10-16 17:23:28,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:28,279 INFO L495 AbstractCegarLoop]: Abstraction has 14887 states and 16298 transitions. [2022-10-16 17:23:28,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.26086956521739) internal successors, (328), 24 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:28,280 INFO L276 IsEmpty]: Start isEmpty. Operand 14887 states and 16298 transitions. [2022-10-16 17:23:28,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-10-16 17:23:28,284 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:28,284 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-10-16 17:23:28,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2022-10-16 17:23:28,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:28,499 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash -890806756, now seen corresponding path program 9 times [2022-10-16 17:23:28,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:28,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936222220] [2022-10-16 17:23:28,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:28,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:28,511 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:28,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [230392637] [2022-10-16 17:23:28,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:23:28,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:28,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:28,513 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:28,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 17:23:28,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-16 17:23:28,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:28,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:23:28,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 336 proven. 45 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-10-16 17:23:29,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 336 proven. 45 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-10-16 17:23:30,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:30,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936222220] [2022-10-16 17:23:30,452 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:30,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230392637] [2022-10-16 17:23:30,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230392637] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:30,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:30,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 14 [2022-10-16 17:23:30,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953128804] [2022-10-16 17:23:30,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:30,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:23:30,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:30,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:23:30,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:23:30,453 INFO L87 Difference]: Start difference. First operand 14887 states and 16298 transitions. Second operand has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 15 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:32,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:32,250 INFO L93 Difference]: Finished difference Result 15126 states and 16549 transitions. [2022-10-16 17:23:32,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 17:23:32,250 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 15 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2022-10-16 17:23:32,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:32,265 INFO L225 Difference]: With dead ends: 15126 [2022-10-16 17:23:32,265 INFO L226 Difference]: Without dead ends: 15124 [2022-10-16 17:23:32,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 334 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=169, Invalid=481, Unknown=0, NotChecked=0, Total=650 [2022-10-16 17:23:32,270 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 164 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 553 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:32,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 137 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 210 Invalid, 0 Unknown, 553 Unchecked, 0.2s Time] [2022-10-16 17:23:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15124 states. [2022-10-16 17:23:32,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15124 to 13642. [2022-10-16 17:23:32,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13642 states, 13638 states have (on average 1.0969350344625313) internal successors, (14960), 13641 states have internal predecessors, (14960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13642 states to 13642 states and 14960 transitions. [2022-10-16 17:23:32,951 INFO L78 Accepts]: Start accepts. Automaton has 13642 states and 14960 transitions. Word has length 170 [2022-10-16 17:23:32,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:32,951 INFO L495 AbstractCegarLoop]: Abstraction has 13642 states and 14960 transitions. [2022-10-16 17:23:32,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.357142857142858) internal successors, (145), 15 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:32,951 INFO L276 IsEmpty]: Start isEmpty. Operand 13642 states and 14960 transitions. [2022-10-16 17:23:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-16 17:23:32,957 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:32,957 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:23:32,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:33,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-10-16 17:23:33,170 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:33,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:33,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1017423886, now seen corresponding path program 10 times [2022-10-16 17:23:33,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:33,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126286844] [2022-10-16 17:23:33,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:33,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:33,183 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:33,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [839538617] [2022-10-16 17:23:33,184 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:23:33,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:33,185 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:33,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 17:23:33,248 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:23:33,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:33,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:23:33,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 538 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:33,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 538 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:34,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:34,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126286844] [2022-10-16 17:23:34,166 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:34,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [839538617] [2022-10-16 17:23:34,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [839538617] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:34,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:34,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2022-10-16 17:23:34,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706926233] [2022-10-16 17:23:34,167 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:34,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 17:23:34,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:34,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 17:23:34,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2022-10-16 17:23:34,168 INFO L87 Difference]: Start difference. First operand 13642 states and 14960 transitions. Second operand has 25 states, 25 states have (on average 12.88) internal successors, (322), 25 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:37,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:37,483 INFO L93 Difference]: Finished difference Result 37982 states and 42265 transitions. [2022-10-16 17:23:37,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 17:23:37,484 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.88) internal successors, (322), 25 states have internal predecessors, (322), 0 states have call successors, (0), 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 200 [2022-10-16 17:23:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:37,517 INFO L225 Difference]: With dead ends: 37982 [2022-10-16 17:23:37,517 INFO L226 Difference]: Without dead ends: 28944 [2022-10-16 17:23:37,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 370 SyntacticMatches, 5 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=478, Invalid=1328, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 17:23:37,533 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 326 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 2658 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 2683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:37,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 854 Invalid, 2683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2658 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-16 17:23:37,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28944 states. [2022-10-16 17:23:38,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28944 to 17535. [2022-10-16 17:23:38,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17535 states, 17531 states have (on average 1.0880155153727682) internal successors, (19074), 17534 states have internal predecessors, (19074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17535 states to 17535 states and 19074 transitions. [2022-10-16 17:23:38,494 INFO L78 Accepts]: Start accepts. Automaton has 17535 states and 19074 transitions. Word has length 200 [2022-10-16 17:23:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:38,494 INFO L495 AbstractCegarLoop]: Abstraction has 17535 states and 19074 transitions. [2022-10-16 17:23:38,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.88) internal successors, (322), 25 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 17535 states and 19074 transitions. [2022-10-16 17:23:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-10-16 17:23:38,505 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:38,506 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:23:38,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:38,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:38,720 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:38,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:38,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1098510414, now seen corresponding path program 3 times [2022-10-16 17:23:38,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:38,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12874725] [2022-10-16 17:23:38,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:38,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:38,737 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:38,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [759380660] [2022-10-16 17:23:38,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:23:38,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:38,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:38,739 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:38,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-16 17:23:38,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-10-16 17:23:38,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:38,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 20 conjunts are in the unsatisfiable core [2022-10-16 17:23:38,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 0 proven. 1579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:39,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:41,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 0 proven. 1579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:23:41,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:41,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12874725] [2022-10-16 17:23:41,101 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:41,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [759380660] [2022-10-16 17:23:41,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [759380660] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:41,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:41,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 39 [2022-10-16 17:23:41,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625637537] [2022-10-16 17:23:41,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:41,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 17:23:41,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:41,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 17:23:41,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=428, Invalid=1132, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 17:23:41,107 INFO L87 Difference]: Start difference. First operand 17535 states and 19074 transitions. Second operand has 40 states, 39 states have (on average 11.846153846153847) internal successors, (462), 40 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:48,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:48,335 INFO L93 Difference]: Finished difference Result 32810 states and 35637 transitions. [2022-10-16 17:23:48,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-10-16 17:23:48,336 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 11.846153846153847) internal successors, (462), 40 states have internal predecessors, (462), 0 states have call successors, (0), 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 232 [2022-10-16 17:23:48,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:48,360 INFO L225 Difference]: With dead ends: 32810 [2022-10-16 17:23:48,360 INFO L226 Difference]: Without dead ends: 32809 [2022-10-16 17:23:48,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4896 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=4598, Invalid=9922, Unknown=0, NotChecked=0, Total=14520 [2022-10-16 17:23:48,369 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1802 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:48,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 67 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 17:23:48,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32809 states. [2022-10-16 17:23:50,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32809 to 32035. [2022-10-16 17:23:50,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32035 states, 32031 states have (on average 1.058068745902407) internal successors, (33891), 32034 states have internal predecessors, (33891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:50,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32035 states to 32035 states and 33891 transitions. [2022-10-16 17:23:50,106 INFO L78 Accepts]: Start accepts. Automaton has 32035 states and 33891 transitions. Word has length 232 [2022-10-16 17:23:50,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:50,107 INFO L495 AbstractCegarLoop]: Abstraction has 32035 states and 33891 transitions. [2022-10-16 17:23:50,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 11.846153846153847) internal successors, (462), 40 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 32035 states and 33891 transitions. [2022-10-16 17:23:50,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-10-16 17:23:50,114 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:50,114 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-10-16 17:23:50,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:50,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 17:23:50,315 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:50,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:50,316 INFO L85 PathProgramCache]: Analyzing trace with hash -650857509, now seen corresponding path program 11 times [2022-10-16 17:23:50,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:50,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695641676] [2022-10-16 17:23:50,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:50,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:50,334 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:50,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [37798113] [2022-10-16 17:23:50,334 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:23:50,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:50,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:50,336 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:50,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-10-16 17:23:50,425 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2022-10-16 17:23:50,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:50,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 17:23:50,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1676 backedges. 1004 proven. 536 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-10-16 17:23:50,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:51,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1676 backedges. 931 proven. 609 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-10-16 17:23:51,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:51,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695641676] [2022-10-16 17:23:51,258 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:51,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37798113] [2022-10-16 17:23:51,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37798113] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:51,258 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:51,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2022-10-16 17:23:51,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464328331] [2022-10-16 17:23:51,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:51,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:23:51,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:51,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:23:51,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:23:51,261 INFO L87 Difference]: Start difference. First operand 32035 states and 33891 transitions. Second operand has 18 states, 18 states have (on average 14.61111111111111) internal successors, (263), 18 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:53,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:23:53,759 INFO L93 Difference]: Finished difference Result 45951 states and 48984 transitions. [2022-10-16 17:23:53,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:23:53,760 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.61111111111111) internal successors, (263), 18 states have internal predecessors, (263), 0 states have call successors, (0), 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 245 [2022-10-16 17:23:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:23:53,780 INFO L225 Difference]: With dead ends: 45951 [2022-10-16 17:23:53,780 INFO L226 Difference]: Without dead ends: 21023 [2022-10-16 17:23:53,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2022-10-16 17:23:53,794 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 131 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 2528 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 2528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-10-16 17:23:53,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 746 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 2528 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-10-16 17:23:53,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21023 states. [2022-10-16 17:23:54,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21023 to 20928. [2022-10-16 17:23:54,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20928 states, 20924 states have (on average 1.0703976295163449) internal successors, (22397), 20927 states have internal predecessors, (22397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20928 states to 20928 states and 22397 transitions. [2022-10-16 17:23:54,497 INFO L78 Accepts]: Start accepts. Automaton has 20928 states and 22397 transitions. Word has length 245 [2022-10-16 17:23:54,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:23:54,498 INFO L495 AbstractCegarLoop]: Abstraction has 20928 states and 22397 transitions. [2022-10-16 17:23:54,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.61111111111111) internal successors, (263), 18 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:23:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 20928 states and 22397 transitions. [2022-10-16 17:23:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-10-16 17:23:54,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:23:54,502 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:23:54,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-10-16 17:23:54,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 17:23:54,702 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:23:54,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:23:54,703 INFO L85 PathProgramCache]: Analyzing trace with hash 295212485, now seen corresponding path program 12 times [2022-10-16 17:23:54,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:23:54,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038571802] [2022-10-16 17:23:54,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:23:54,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:23:54,716 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:23:54,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [941554438] [2022-10-16 17:23:54,717 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 17:23:54,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:23:54,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:23:54,718 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:23:54,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-10-16 17:23:54,896 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2022-10-16 17:23:54,897 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:23:54,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 17:23:54,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:23:55,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2203 backedges. 0 proven. 1695 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-10-16 17:23:55,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:23:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2203 backedges. 0 proven. 1695 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2022-10-16 17:23:57,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:23:57,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038571802] [2022-10-16 17:23:57,938 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:23:57,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941554438] [2022-10-16 17:23:57,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941554438] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:23:57,938 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:23:57,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2022-10-16 17:23:57,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888524301] [2022-10-16 17:23:57,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:23:57,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 17:23:57,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:23:57,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 17:23:57,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=430, Unknown=0, NotChecked=0, Total=650 [2022-10-16 17:23:57,940 INFO L87 Difference]: Start difference. First operand 20928 states and 22397 transitions. Second operand has 26 states, 25 states have (on average 12.72) internal successors, (318), 26 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:00,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:24:00,914 INFO L93 Difference]: Finished difference Result 22385 states and 23995 transitions. [2022-10-16 17:24:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 17:24:00,914 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 12.72) internal successors, (318), 26 states have internal predecessors, (318), 0 states have call successors, (0), 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 275 [2022-10-16 17:24:00,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:24:00,931 INFO L225 Difference]: With dead ends: 22385 [2022-10-16 17:24:00,931 INFO L226 Difference]: Without dead ends: 22384 [2022-10-16 17:24:00,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 530 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=930, Invalid=1826, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 17:24:00,936 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 345 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 628 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:24:00,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 209 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 382 Invalid, 0 Unknown, 628 Unchecked, 0.4s Time] [2022-10-16 17:24:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22384 states. [2022-10-16 17:24:01,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22384 to 22324. [2022-10-16 17:24:01,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22324 states, 22320 states have (on average 1.071505376344086) internal successors, (23916), 22323 states have internal predecessors, (23916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:01,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22324 states to 22324 states and 23916 transitions. [2022-10-16 17:24:01,708 INFO L78 Accepts]: Start accepts. Automaton has 22324 states and 23916 transitions. Word has length 275 [2022-10-16 17:24:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:24:01,709 INFO L495 AbstractCegarLoop]: Abstraction has 22324 states and 23916 transitions. [2022-10-16 17:24:01,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 12.72) internal successors, (318), 26 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 22324 states and 23916 transitions. [2022-10-16 17:24:01,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-10-16 17:24:01,714 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:24:01,714 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2022-10-16 17:24:01,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-10-16 17:24:01,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 17:24:01,915 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:24:01,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:24:01,916 INFO L85 PathProgramCache]: Analyzing trace with hash -968836735, now seen corresponding path program 13 times [2022-10-16 17:24:01,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:24:01,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80561150] [2022-10-16 17:24:01,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:24:01,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:24:01,934 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:24:01,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1040630283] [2022-10-16 17:24:01,934 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 17:24:01,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:01,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:24:01,942 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:24:01,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-10-16 17:24:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:24:02,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 17:24:02,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:24:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2490 backedges. 0 proven. 2391 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 17:24:03,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:24:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2490 backedges. 0 proven. 2391 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-16 17:24:05,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:24:05,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80561150] [2022-10-16 17:24:05,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:24:05,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040630283] [2022-10-16 17:24:05,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040630283] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:24:05,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:24:05,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2022-10-16 17:24:05,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983657257] [2022-10-16 17:24:05,611 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:24:05,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 17:24:05,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:24:05,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 17:24:05,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2022-10-16 17:24:05,613 INFO L87 Difference]: Start difference. First operand 22324 states and 23916 transitions. Second operand has 28 states, 27 states have (on average 15.851851851851851) internal successors, (428), 28 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:24:11,598 INFO L93 Difference]: Finished difference Result 22453 states and 24039 transitions. [2022-10-16 17:24:11,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-10-16 17:24:11,600 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 15.851851851851851) internal successors, (428), 28 states have internal predecessors, (428), 0 states have call successors, (0), 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 305 [2022-10-16 17:24:11,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:24:11,617 INFO L225 Difference]: With dead ends: 22453 [2022-10-16 17:24:11,617 INFO L226 Difference]: Without dead ends: 22452 [2022-10-16 17:24:11,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1109, Invalid=2923, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 17:24:11,623 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 452 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 2835 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 2936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:24:11,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 904 Invalid, 2936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2835 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 17:24:11,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22452 states. [2022-10-16 17:24:12,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22452 to 22324. [2022-10-16 17:24:12,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22324 states, 22320 states have (on average 1.0707437275985663) internal successors, (23899), 22323 states have internal predecessors, (23899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22324 states to 22324 states and 23899 transitions. [2022-10-16 17:24:12,501 INFO L78 Accepts]: Start accepts. Automaton has 22324 states and 23899 transitions. Word has length 305 [2022-10-16 17:24:12,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:24:12,502 INFO L495 AbstractCegarLoop]: Abstraction has 22324 states and 23899 transitions. [2022-10-16 17:24:12,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 15.851851851851851) internal successors, (428), 28 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:12,502 INFO L276 IsEmpty]: Start isEmpty. Operand 22324 states and 23899 transitions. [2022-10-16 17:24:12,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-10-16 17:24:12,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:24:12,508 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2022-10-16 17:24:12,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-10-16 17:24:12,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 17:24:12,709 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:24:12,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:24:12,710 INFO L85 PathProgramCache]: Analyzing trace with hash 756229299, now seen corresponding path program 4 times [2022-10-16 17:24:12,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:24:12,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354608441] [2022-10-16 17:24:12,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:24:12,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:24:12,724 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:24:12,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [350781644] [2022-10-16 17:24:12,724 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:24:12,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:24:12,726 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:24:12,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-10-16 17:24:12,815 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:24:12,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:24:12,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 17:24:12,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:24:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3663 backedges. 0 proven. 3663 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:13,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:24:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3663 backedges. 0 proven. 3663 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:14,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:24:14,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354608441] [2022-10-16 17:24:14,710 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:24:14,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350781644] [2022-10-16 17:24:14,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350781644] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:24:14,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:24:14,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2022-10-16 17:24:14,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799205018] [2022-10-16 17:24:14,711 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:24:14,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:24:14,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:24:14,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:24:14,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:24:14,714 INFO L87 Difference]: Start difference. First operand 22324 states and 23899 transitions. Second operand has 48 states, 47 states have (on average 14.51063829787234) internal successors, (682), 48 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:16,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:24:16,861 INFO L93 Difference]: Finished difference Result 34574 states and 38092 transitions. [2022-10-16 17:24:16,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 17:24:16,861 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 14.51063829787234) internal successors, (682), 48 states have internal predecessors, (682), 0 states have call successors, (0), 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 342 [2022-10-16 17:24:16,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:24:16,890 INFO L225 Difference]: With dead ends: 34574 [2022-10-16 17:24:16,890 INFO L226 Difference]: Without dead ends: 34573 [2022-10-16 17:24:16,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:24:16,898 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 978 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:24:16,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [978 Valid, 335 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 17:24:16,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34573 states. [2022-10-16 17:24:18,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34573 to 32309. [2022-10-16 17:24:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32309 states, 32305 states have (on average 1.0897074756229685) internal successors, (35203), 32308 states have internal predecessors, (35203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32309 states to 32309 states and 35203 transitions. [2022-10-16 17:24:18,512 INFO L78 Accepts]: Start accepts. Automaton has 32309 states and 35203 transitions. Word has length 342 [2022-10-16 17:24:18,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:24:18,513 INFO L495 AbstractCegarLoop]: Abstraction has 32309 states and 35203 transitions. [2022-10-16 17:24:18,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 14.51063829787234) internal successors, (682), 48 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:18,513 INFO L276 IsEmpty]: Start isEmpty. Operand 32309 states and 35203 transitions. [2022-10-16 17:24:18,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2022-10-16 17:24:18,522 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:24:18,523 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2022-10-16 17:24:18,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2022-10-16 17:24:18,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:18,738 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:24:18,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:24:18,739 INFO L85 PathProgramCache]: Analyzing trace with hash -95254414, now seen corresponding path program 3 times [2022-10-16 17:24:18,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:24:18,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155728853] [2022-10-16 17:24:18,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:24:18,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:24:18,753 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:24:18,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1672583255] [2022-10-16 17:24:18,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:24:18,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:18,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:24:18,755 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:24:18,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-10-16 17:24:18,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-10-16 17:24:18,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:24:18,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 17:24:18,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:24:19,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3729 backedges. 0 proven. 3729 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:19,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:24:20,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3729 backedges. 0 proven. 3729 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:20,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:24:20,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155728853] [2022-10-16 17:24:20,768 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:24:20,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672583255] [2022-10-16 17:24:20,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672583255] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:24:20,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:24:20,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2022-10-16 17:24:20,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70804992] [2022-10-16 17:24:20,769 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:24:20,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:24:20,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:24:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:24:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:24:20,772 INFO L87 Difference]: Start difference. First operand 32309 states and 35203 transitions. Second operand has 48 states, 47 states have (on average 14.638297872340425) internal successors, (688), 48 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:24,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:24:24,542 INFO L93 Difference]: Finished difference Result 58251 states and 63821 transitions. [2022-10-16 17:24:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 17:24:24,543 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 14.638297872340425) internal successors, (688), 48 states have internal predecessors, (688), 0 states have call successors, (0), 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 345 [2022-10-16 17:24:24,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:24:24,590 INFO L225 Difference]: With dead ends: 58251 [2022-10-16 17:24:24,590 INFO L226 Difference]: Without dead ends: 58250 [2022-10-16 17:24:24,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 688 GetRequests, 642 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:24:24,600 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 1427 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:24:24,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 572 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 17:24:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58250 states. [2022-10-16 17:24:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58250 to 56381. [2022-10-16 17:24:26,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56381 states, 56377 states have (on average 1.0973801372900296) internal successors, (61867), 56380 states have internal predecessors, (61867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56381 states to 56381 states and 61867 transitions. [2022-10-16 17:24:26,638 INFO L78 Accepts]: Start accepts. Automaton has 56381 states and 61867 transitions. Word has length 345 [2022-10-16 17:24:26,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:24:26,638 INFO L495 AbstractCegarLoop]: Abstraction has 56381 states and 61867 transitions. [2022-10-16 17:24:26,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 14.638297872340425) internal successors, (688), 48 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 56381 states and 61867 transitions. [2022-10-16 17:24:26,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-10-16 17:24:26,645 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:24:26,646 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 21, 21, 21, 21, 21, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:24:26,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2022-10-16 17:24:26,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:26,846 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:24:26,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:24:26,848 INFO L85 PathProgramCache]: Analyzing trace with hash -2030363608, now seen corresponding path program 4 times [2022-10-16 17:24:26,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:24:26,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76498396] [2022-10-16 17:24:26,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:24:26,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:24:26,864 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:24:26,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [885787637] [2022-10-16 17:24:26,864 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:24:26,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:26,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:24:26,865 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:24:26,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2022-10-16 17:24:26,961 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:24:26,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:24:26,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 17:24:26,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:24:27,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3719 backedges. 1487 proven. 2209 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 17:24:27,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:24:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3719 backedges. 1487 proven. 2209 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 17:24:29,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:24:29,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76498396] [2022-10-16 17:24:29,212 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:24:29,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885787637] [2022-10-16 17:24:29,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885787637] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:24:29,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:24:29,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 35 [2022-10-16 17:24:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898743331] [2022-10-16 17:24:29,213 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:24:29,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 17:24:29,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:24:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 17:24:29,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 17:24:29,215 INFO L87 Difference]: Start difference. First operand 56381 states and 61867 transitions. Second operand has 35 states, 35 states have (on average 14.228571428571428) internal successors, (498), 35 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:24:37,722 INFO L93 Difference]: Finished difference Result 150013 states and 165796 transitions. [2022-10-16 17:24:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-10-16 17:24:37,723 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 14.228571428571428) internal successors, (498), 35 states have internal predecessors, (498), 0 states have call successors, (0), 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 352 [2022-10-16 17:24:37,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:24:37,835 INFO L225 Difference]: With dead ends: 150013 [2022-10-16 17:24:37,835 INFO L226 Difference]: Without dead ends: 104905 [2022-10-16 17:24:37,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 658 SyntacticMatches, 11 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3316 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2059, Invalid=8861, Unknown=0, NotChecked=0, Total=10920 [2022-10-16 17:24:37,871 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 1469 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:24:37,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 555 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-16 17:24:37,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104905 states. [2022-10-16 17:24:41,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104905 to 75044. [2022-10-16 17:24:41,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75044 states, 75040 states have (on average 1.0920842217484008) internal successors, (81950), 75043 states have internal predecessors, (81950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:41,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75044 states to 75044 states and 81950 transitions. [2022-10-16 17:24:41,296 INFO L78 Accepts]: Start accepts. Automaton has 75044 states and 81950 transitions. Word has length 352 [2022-10-16 17:24:41,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:24:41,297 INFO L495 AbstractCegarLoop]: Abstraction has 75044 states and 81950 transitions. [2022-10-16 17:24:41,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 14.228571428571428) internal successors, (498), 35 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:24:41,298 INFO L276 IsEmpty]: Start isEmpty. Operand 75044 states and 81950 transitions. [2022-10-16 17:24:41,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-10-16 17:24:41,309 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:24:41,309 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 23, 21, 21, 21, 21, 21, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:24:41,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2022-10-16 17:24:41,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-10-16 17:24:41,510 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:24:41,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:24:41,512 INFO L85 PathProgramCache]: Analyzing trace with hash 433670012, now seen corresponding path program 5 times [2022-10-16 17:24:41,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:24:41,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682266275] [2022-10-16 17:24:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:24:41,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:24:41,529 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:24:41,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059481850] [2022-10-16 17:24:41,530 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:24:41,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:24:41,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:24:41,531 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:24:41,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-10-16 17:24:41,655 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2022-10-16 17:24:41,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:24:41,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 17:24:41,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:24:43,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3719 backedges. 0 proven. 3719 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:43,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:24:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3719 backedges. 0 proven. 3719 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:24:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:24:46,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682266275] [2022-10-16 17:24:46,747 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:24:46,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059481850] [2022-10-16 17:24:46,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059481850] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:24:46,748 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:24:46,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 55 [2022-10-16 17:24:46,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473777673] [2022-10-16 17:24:46,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:24:46,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-10-16 17:24:46,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:24:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-10-16 17:24:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=812, Invalid=2268, Unknown=0, NotChecked=0, Total=3080 [2022-10-16 17:24:46,751 INFO L87 Difference]: Start difference. First operand 75044 states and 81950 transitions. Second operand has 56 states, 55 states have (on average 12.763636363636364) internal successors, (702), 56 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:25:04,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:25:04,861 INFO L93 Difference]: Finished difference Result 90163 states and 98230 transitions. [2022-10-16 17:25:04,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2022-10-16 17:25:04,864 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 12.763636363636364) internal successors, (702), 56 states have internal predecessors, (702), 0 states have call successors, (0), 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 352 [2022-10-16 17:25:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:25:04,944 INFO L225 Difference]: With dead ends: 90163 [2022-10-16 17:25:04,945 INFO L226 Difference]: Without dead ends: 90162 [2022-10-16 17:25:04,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 818 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10660 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=9467, Invalid=19945, Unknown=0, NotChecked=0, Total=29412 [2022-10-16 17:25:04,957 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1656 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1197 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 1197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:25:04,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 153 Invalid, 1571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 1197 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 17:25:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90162 states. [2022-10-16 17:25:08,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90162 to 87856. [2022-10-16 17:25:08,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87856 states, 87852 states have (on average 1.0815234712926285) internal successors, (95014), 87855 states have internal predecessors, (95014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:25:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87856 states to 87856 states and 95014 transitions. [2022-10-16 17:25:08,882 INFO L78 Accepts]: Start accepts. Automaton has 87856 states and 95014 transitions. Word has length 352 [2022-10-16 17:25:08,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:25:08,883 INFO L495 AbstractCegarLoop]: Abstraction has 87856 states and 95014 transitions. [2022-10-16 17:25:08,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 12.763636363636364) internal successors, (702), 56 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:25:08,883 INFO L276 IsEmpty]: Start isEmpty. Operand 87856 states and 95014 transitions. [2022-10-16 17:25:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-10-16 17:25:08,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:25:08,897 INFO L195 NwaCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 25, 25, 25, 25, 25, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 17:25:08,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2022-10-16 17:25:09,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:25:09,110 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:25:09,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:25:09,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1918546214, now seen corresponding path program 14 times [2022-10-16 17:25:09,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:25:09,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155189832] [2022-10-16 17:25:09,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:25:09,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:25:09,297 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:25:09,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87251699] [2022-10-16 17:25:09,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:25:09,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:25:09,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:25:09,298 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:25:09,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2022-10-16 17:25:09,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:25:09,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:25:09,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 17:25:09,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:25:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 5119 backedges. 2285 proven. 2834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:25:10,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:25:12,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5119 backedges. 2285 proven. 2834 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:25:12,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:25:12,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155189832] [2022-10-16 17:25:12,363 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 17:25:12,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87251699] [2022-10-16 17:25:12,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87251699] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:25:12,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 17:25:12,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 48 [2022-10-16 17:25:12,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196103012] [2022-10-16 17:25:12,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 17:25:12,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:25:12,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:25:12,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:25:12,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=590, Invalid=1666, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:25:12,367 INFO L87 Difference]: Start difference. First operand 87856 states and 95014 transitions. Second operand has 48 states, 48 states have (on average 13.895833333333334) internal successors, (667), 48 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:25:21,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:25:21,863 INFO L93 Difference]: Finished difference Result 168748 states and 184624 transitions. [2022-10-16 17:25:21,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-16 17:25:21,865 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 13.895833333333334) internal successors, (667), 48 states have internal predecessors, (667), 0 states have call successors, (0), 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 410 [2022-10-16 17:25:21,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:25:21,996 INFO L225 Difference]: With dead ends: 168748 [2022-10-16 17:25:21,997 INFO L226 Difference]: Without dead ends: 119268 [2022-10-16 17:25:22,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 762 SyntacticMatches, 10 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2163 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1715, Invalid=5257, Unknown=0, NotChecked=0, Total=6972 [2022-10-16 17:25:22,195 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 644 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 4492 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 4541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 4492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:25:22,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1400 Invalid, 4541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 4492 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-10-16 17:25:22,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119268 states. [2022-10-16 17:25:26,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119268 to 97222. [2022-10-16 17:25:26,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97222 states, 97218 states have (on average 1.0787097039642866) internal successors, (104870), 97221 states have internal predecessors, (104870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:25:26,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97222 states to 97222 states and 104870 transitions. [2022-10-16 17:25:26,890 INFO L78 Accepts]: Start accepts. Automaton has 97222 states and 104870 transitions. Word has length 410 [2022-10-16 17:25:26,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:25:26,891 INFO L495 AbstractCegarLoop]: Abstraction has 97222 states and 104870 transitions. [2022-10-16 17:25:26,891 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 13.895833333333334) internal successors, (667), 48 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:25:26,891 INFO L276 IsEmpty]: Start isEmpty. Operand 97222 states and 104870 transitions. [2022-10-16 17:25:26,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-10-16 17:25:26,901 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:25:26,901 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 29, 29, 29, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1] [2022-10-16 17:25:26,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2022-10-16 17:25:27,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-10-16 17:25:27,102 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:25:27,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:25:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1991518892, now seen corresponding path program 6 times [2022-10-16 17:25:27,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:25:27,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679517693] [2022-10-16 17:25:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:25:27,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:25:27,296 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 17:25:27,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1784939813] [2022-10-16 17:25:27,297 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 17:25:27,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:25:27,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:25:27,302 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:25:27,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2022-10-16 17:25:27,372 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2022-10-16 17:25:27,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:25:27,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:25:27,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:25:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5366 backedges. 1116 proven. 651 refuted. 0 times theorem prover too weak. 3599 trivial. 0 not checked. [2022-10-16 17:25:27,952 INFO L328 TraceCheckSpWp]: Computing backward predicates...