/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-memory-alloca/diff-alloca-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:55:12,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:55:12,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:55:12,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:55:12,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:55:12,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:55:12,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:55:12,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:55:12,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:55:12,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:55:12,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:55:12,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:55:12,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:55:12,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:55:12,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:55:12,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:55:12,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:55:12,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:55:12,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:55:12,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:55:12,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:55:12,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:55:12,197 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:55:12,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:55:12,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:55:12,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:55:12,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:55:12,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:55:12,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:55:12,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:55:12,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:55:12,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:55:12,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:55:12,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:55:12,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:55:12,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:55:12,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:55:12,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:55:12,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:55:12,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:55:12,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:55:12,217 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 17:55:12,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:55:12,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:55:12,248 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:55:12,248 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:55:12,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:55:12,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:55:12,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:55:12,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:55:12,251 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:55:12,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:55:12,251 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:55:12,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:55:12,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:55:12,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:55:12,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:55:12,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:55:12,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:55:12,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:55:12,253 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:55:12,253 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:55:12,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:55:12,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:55:12,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:55:12,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:55:12,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:55:12,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:55:12,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:55:12,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:55:12,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:55:12,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:55:12,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:55:12,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:55:12,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:55:12,257 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:55:12,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:55:12,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:55:12,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:55:12,655 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:55:12,656 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:55:12,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/diff-alloca-1.i [2022-10-16 17:55:12,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6142116/5dd97be8bf1c49378ccf059b1a2e8df8/FLAG589fc7fde [2022-10-16 17:55:13,536 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:55:13,537 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/diff-alloca-1.i [2022-10-16 17:55:13,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6142116/5dd97be8bf1c49378ccf059b1a2e8df8/FLAG589fc7fde [2022-10-16 17:55:13,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c6142116/5dd97be8bf1c49378ccf059b1a2e8df8 [2022-10-16 17:55:13,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:55:13,807 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:55:13,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:55:13,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:55:13,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:55:13,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:55:13" (1/1) ... [2022-10-16 17:55:13,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44dcffd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:13, skipping insertion in model container [2022-10-16 17:55:13,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:55:13" (1/1) ... [2022-10-16 17:55:13,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:55:13,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:55:14,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:55:14,178 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:55:14,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:55:14,261 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:55:14,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14 WrapperNode [2022-10-16 17:55:14,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:55:14,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:55:14,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:55:14,264 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:55:14,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,315 INFO L138 Inliner]: procedures = 111, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2022-10-16 17:55:14,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:55:14,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:55:14,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:55:14,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:55:14,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:55:14,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:55:14,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:55:14,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:55:14,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (1/1) ... [2022-10-16 17:55:14,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:55:14,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:14,390 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 17:55:14,406 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 17:55:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:55:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:55:14,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:55:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:55:14,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:55:14,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:55:14,599 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:55:14,602 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:55:14,826 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:55:14,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:55:14,833 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 17:55:14,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:55:14 BoogieIcfgContainer [2022-10-16 17:55:14,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:55:14,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:55:14,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:55:14,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:55:14,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:55:13" (1/3) ... [2022-10-16 17:55:14,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e08415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:55:14, skipping insertion in model container [2022-10-16 17:55:14,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:55:14" (2/3) ... [2022-10-16 17:55:14,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e08415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:55:14, skipping insertion in model container [2022-10-16 17:55:14,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:55:14" (3/3) ... [2022-10-16 17:55:14,862 INFO L112 eAbstractionObserver]: Analyzing ICFG diff-alloca-1.i [2022-10-16 17:55:14,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:55:14,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 17:55:14,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:55:14,991 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;@61942983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:55:14,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 17:55:14,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.736842105263158) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:15,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:55:15,005 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:15,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:15,007 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:15,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:15,013 INFO L85 PathProgramCache]: Analyzing trace with hash -533787632, now seen corresponding path program 1 times [2022-10-16 17:55:15,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:15,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293473103] [2022-10-16 17:55:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:15,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:15,591 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 17:55:15,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:15,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293473103] [2022-10-16 17:55:15,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293473103] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:15,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:55:15,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:55:15,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205030151] [2022-10-16 17:55:15,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:15,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:55:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:15,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:55:15,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:55:15,648 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.736842105263158) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 17:55:15,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:15,757 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2022-10-16 17:55:15,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:55:15,760 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 17:55:15,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:15,770 INFO L225 Difference]: With dead ends: 66 [2022-10-16 17:55:15,770 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 17:55:15,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:55:15,786 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:15,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 84 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 17:55:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2022-10-16 17:55:15,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.65) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-10-16 17:55:15,834 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 9 [2022-10-16 17:55:15,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:15,835 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-10-16 17:55:15,835 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 17:55:15,836 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-10-16 17:55:15,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 17:55:15,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:15,837 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:15,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:55:15,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash -533789202, now seen corresponding path program 1 times [2022-10-16 17:55:15,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:15,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434746249] [2022-10-16 17:55:15,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:15,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:15,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:15,968 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 17:55:15,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:15,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434746249] [2022-10-16 17:55:15,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434746249] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:15,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:55:15,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:55:15,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684549330] [2022-10-16 17:55:15,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:15,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:55:15,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:15,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:55:15,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:55:15,973 INFO L87 Difference]: Start difference. First operand 26 states and 33 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 17:55:16,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:16,007 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2022-10-16 17:55:16,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:55:16,008 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 17:55:16,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:16,009 INFO L225 Difference]: With dead ends: 47 [2022-10-16 17:55:16,009 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 17:55:16,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:55:16,012 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:16,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 69 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:16,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 17:55:16,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2022-10-16 17:55:16,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 40 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:16,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 57 transitions. [2022-10-16 17:55:16,022 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 57 transitions. Word has length 9 [2022-10-16 17:55:16,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:16,023 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 57 transitions. [2022-10-16 17:55:16,023 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 17:55:16,023 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2022-10-16 17:55:16,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 17:55:16,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:16,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:16,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:55:16,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:16,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash 632409963, now seen corresponding path program 1 times [2022-10-16 17:55:16,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:16,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368431351] [2022-10-16 17:55:16,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:16,114 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 17:55:16,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:16,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368431351] [2022-10-16 17:55:16,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368431351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:16,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:55:16,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:55:16,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794404571] [2022-10-16 17:55:16,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:16,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:55:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:16,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:55:16,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:55:16,122 INFO L87 Difference]: Start difference. First operand 41 states and 57 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:16,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:16,167 INFO L93 Difference]: Finished difference Result 89 states and 125 transitions. [2022-10-16 17:55:16,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:55:16,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 17:55:16,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:16,171 INFO L225 Difference]: With dead ends: 89 [2022-10-16 17:55:16,172 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 17:55:16,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:55:16,177 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:16,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 41 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:16,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 17:55:16,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 47. [2022-10-16 17:55:16,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 41 states have (on average 1.6341463414634145) internal successors, (67), 46 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 17:55:16,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2022-10-16 17:55:16,205 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 10 [2022-10-16 17:55:16,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:16,205 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2022-10-16 17:55:16,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:16,206 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2022-10-16 17:55:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:55:16,210 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:16,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:16,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:55:16,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:16,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:16,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2100445810, now seen corresponding path program 1 times [2022-10-16 17:55:16,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:16,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782603908] [2022-10-16 17:55:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:16,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:55:16,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:16,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782603908] [2022-10-16 17:55:16,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782603908] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:16,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:55:16,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:55:16,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206443165] [2022-10-16 17:55:16,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:16,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:55:16,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:16,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:55:16,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:55:16,328 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:16,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:16,374 INFO L93 Difference]: Finished difference Result 72 states and 101 transitions. [2022-10-16 17:55:16,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:55:16,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:55:16,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:16,376 INFO L225 Difference]: With dead ends: 72 [2022-10-16 17:55:16,376 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 17:55:16,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:55:16,379 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 11 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:16,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 60 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 17:55:16,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-10-16 17:55:16,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 62 states have (on average 1.564516129032258) internal successors, (97), 67 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:16,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 97 transitions. [2022-10-16 17:55:16,392 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 97 transitions. Word has length 12 [2022-10-16 17:55:16,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:16,393 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 97 transitions. [2022-10-16 17:55:16,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:16,393 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2022-10-16 17:55:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:55:16,394 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:16,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:16,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:55:16,395 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:16,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash -624151607, now seen corresponding path program 1 times [2022-10-16 17:55:16,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:16,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408687868] [2022-10-16 17:55:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:16,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:16,548 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 17:55:16,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:16,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408687868] [2022-10-16 17:55:16,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408687868] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:16,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519537993] [2022-10-16 17:55:16,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:16,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:16,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:16,558 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 17:55:16,578 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 17:55:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:16,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:55:16,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:16,882 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:55:16,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:55:16,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519537993] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:16,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:55:16,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2022-10-16 17:55:16,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74812684] [2022-10-16 17:55:16,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:16,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:55:16,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:16,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:55:16,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:55:16,894 INFO L87 Difference]: Start difference. First operand 68 states and 97 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:17,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:17,026 INFO L93 Difference]: Finished difference Result 195 states and 265 transitions. [2022-10-16 17:55:17,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:55:17,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 17:55:17,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:17,029 INFO L225 Difference]: With dead ends: 195 [2022-10-16 17:55:17,029 INFO L226 Difference]: Without dead ends: 138 [2022-10-16 17:55:17,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:55:17,031 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 61 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:17,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 131 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:17,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-10-16 17:55:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 114. [2022-10-16 17:55:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 108 states have (on average 1.4907407407407407) internal successors, (161), 113 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 161 transitions. [2022-10-16 17:55:17,051 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 161 transitions. Word has length 13 [2022-10-16 17:55:17,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:17,051 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 161 transitions. [2022-10-16 17:55:17,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:17,052 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 161 transitions. [2022-10-16 17:55:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 17:55:17,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:17,053 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:17,091 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 17:55:17,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:17,269 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:17,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:17,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1017178617, now seen corresponding path program 1 times [2022-10-16 17:55:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:17,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917688321] [2022-10-16 17:55:17,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:17,401 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 17:55:17,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:17,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917688321] [2022-10-16 17:55:17,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917688321] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:17,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445477342] [2022-10-16 17:55:17,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:17,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:17,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:17,406 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 17:55:17,415 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 17:55:17,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:17,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:55:17,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:17,565 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 17:55:17,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:17,630 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 17:55:17,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445477342] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:17,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:17,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 17:55:17,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795422620] [2022-10-16 17:55:17,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:17,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:55:17,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:17,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:55:17,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:55:17,639 INFO L87 Difference]: Start difference. First operand 114 states and 161 transitions. Second operand has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:17,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:17,808 INFO L93 Difference]: Finished difference Result 299 states and 411 transitions. [2022-10-16 17:55:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:55:17,809 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 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 13 [2022-10-16 17:55:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:17,813 INFO L225 Difference]: With dead ends: 299 [2022-10-16 17:55:17,813 INFO L226 Difference]: Without dead ends: 298 [2022-10-16 17:55:17,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:55:17,816 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 68 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:17,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 191 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:17,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-10-16 17:55:17,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 156. [2022-10-16 17:55:17,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 150 states have (on average 1.5733333333333333) internal successors, (236), 155 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:17,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 236 transitions. [2022-10-16 17:55:17,842 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 236 transitions. Word has length 13 [2022-10-16 17:55:17,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:17,843 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 236 transitions. [2022-10-16 17:55:17,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:17,843 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 236 transitions. [2022-10-16 17:55:17,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 17:55:17,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:17,844 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:17,879 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 17:55:18,058 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,SelfDestructingSolverStorable5 [2022-10-16 17:55:18,059 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:18,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:18,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1467765983, now seen corresponding path program 1 times [2022-10-16 17:55:18,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:18,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321888670] [2022-10-16 17:55:18,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:18,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:18,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:18,194 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 17:55:18,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:18,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321888670] [2022-10-16 17:55:18,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321888670] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:18,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508482677] [2022-10-16 17:55:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:18,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:18,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:18,197 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 17:55:18,202 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 17:55:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:18,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:55:18,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:55:18,315 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:55:18,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508482677] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:18,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:55:18,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 17:55:18,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301094806] [2022-10-16 17:55:18,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:18,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:55:18,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:18,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:55:18,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:55:18,318 INFO L87 Difference]: Start difference. First operand 156 states and 236 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:18,371 INFO L93 Difference]: Finished difference Result 202 states and 291 transitions. [2022-10-16 17:55:18,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:55:18,372 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 17:55:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:18,374 INFO L225 Difference]: With dead ends: 202 [2022-10-16 17:55:18,374 INFO L226 Difference]: Without dead ends: 201 [2022-10-16 17:55:18,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:55:18,376 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 34 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:18,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 85 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:18,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-16 17:55:18,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 155. [2022-10-16 17:55:18,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 150 states have (on average 1.5133333333333334) internal successors, (227), 154 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:18,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 227 transitions. [2022-10-16 17:55:18,428 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 227 transitions. Word has length 14 [2022-10-16 17:55:18,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:18,428 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 227 transitions. [2022-10-16 17:55:18,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:18,429 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 227 transitions. [2022-10-16 17:55:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:55:18,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:18,430 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:18,473 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 17:55:18,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:18,644 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:18,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:18,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1271657379, now seen corresponding path program 1 times [2022-10-16 17:55:18,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:18,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603864455] [2022-10-16 17:55:18,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:18,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:18,745 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 17:55:18,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:18,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603864455] [2022-10-16 17:55:18,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603864455] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:18,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649222584] [2022-10-16 17:55:18,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:18,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:18,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:18,748 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 17:55:18,772 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 17:55:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:18,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:55:18,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:18,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:55:18,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:55:18,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649222584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:18,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:55:18,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2022-10-16 17:55:18,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428277452] [2022-10-16 17:55:18,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:18,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:55:18,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:18,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:55:18,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:55:18,931 INFO L87 Difference]: Start difference. First operand 155 states and 227 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 17:55:19,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:19,014 INFO L93 Difference]: Finished difference Result 312 states and 454 transitions. [2022-10-16 17:55:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:55:19,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 17:55:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:19,017 INFO L225 Difference]: With dead ends: 312 [2022-10-16 17:55:19,017 INFO L226 Difference]: Without dead ends: 183 [2022-10-16 17:55:19,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-10-16 17:55:19,019 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:19,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 87 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-10-16 17:55:19,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 177. [2022-10-16 17:55:19,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 172 states have (on average 1.4825581395348837) internal successors, (255), 176 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:19,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2022-10-16 17:55:19,037 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 17 [2022-10-16 17:55:19,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:19,037 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2022-10-16 17:55:19,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 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 17:55:19,038 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2022-10-16 17:55:19,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 17:55:19,039 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:19,039 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:19,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 17:55:19,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:19,255 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:19,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1743446239, now seen corresponding path program 1 times [2022-10-16 17:55:19,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:19,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570257941] [2022-10-16 17:55:19,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:19,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:19,341 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 17:55:19,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:19,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570257941] [2022-10-16 17:55:19,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570257941] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:19,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277896322] [2022-10-16 17:55:19,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:19,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:19,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:19,343 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 17:55:19,347 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 17:55:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:19,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:55:19,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:19,444 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 17:55:19,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:19,489 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 17:55:19,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277896322] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:19,490 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:19,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 17:55:19,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220817603] [2022-10-16 17:55:19,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:19,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:55:19,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:19,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:55:19,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:55:19,492 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:19,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:19,603 INFO L93 Difference]: Finished difference Result 331 states and 480 transitions. [2022-10-16 17:55:19,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:55:19,604 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 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 17:55:19,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:19,606 INFO L225 Difference]: With dead ends: 331 [2022-10-16 17:55:19,606 INFO L226 Difference]: Without dead ends: 330 [2022-10-16 17:55:19,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:55:19,608 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 72 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:19,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 174 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:19,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-10-16 17:55:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 313. [2022-10-16 17:55:19,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 308 states have (on average 1.525974025974026) internal successors, (470), 312 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:19,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 470 transitions. [2022-10-16 17:55:19,632 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 470 transitions. Word has length 17 [2022-10-16 17:55:19,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:19,632 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 470 transitions. [2022-10-16 17:55:19,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 470 transitions. [2022-10-16 17:55:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 17:55:19,634 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:19,634 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:19,664 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 17:55:19,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:19,850 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:19,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1787741356, now seen corresponding path program 1 times [2022-10-16 17:55:19,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:19,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871744851] [2022-10-16 17:55:19,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:19,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 17:55:19,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:19,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871744851] [2022-10-16 17:55:19,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871744851] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:19,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:55:19,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:55:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380280138] [2022-10-16 17:55:19,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:19,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:55:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:19,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:55:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:55:19,962 INFO L87 Difference]: Start difference. First operand 313 states and 470 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:20,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:20,019 INFO L93 Difference]: Finished difference Result 558 states and 831 transitions. [2022-10-16 17:55:20,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:55:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 17:55:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:20,022 INFO L225 Difference]: With dead ends: 558 [2022-10-16 17:55:20,022 INFO L226 Difference]: Without dead ends: 353 [2022-10-16 17:55:20,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:55:20,024 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 52 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:20,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:20,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-10-16 17:55:20,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 313. [2022-10-16 17:55:20,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 308 states have (on average 1.4870129870129871) internal successors, (458), 312 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:20,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 458 transitions. [2022-10-16 17:55:20,052 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 458 transitions. Word has length 18 [2022-10-16 17:55:20,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:20,052 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 458 transitions. [2022-10-16 17:55:20,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 458 transitions. [2022-10-16 17:55:20,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 17:55:20,054 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:20,054 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:20,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:55:20,055 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:20,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:20,055 INFO L85 PathProgramCache]: Analyzing trace with hash 934668740, now seen corresponding path program 1 times [2022-10-16 17:55:20,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:20,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678565358] [2022-10-16 17:55:20,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:20,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:20,132 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:55:20,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:20,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678565358] [2022-10-16 17:55:20,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678565358] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:20,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391668480] [2022-10-16 17:55:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:20,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:20,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:20,135 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 17:55:20,141 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 17:55:20,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:20,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:55:20,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:20,253 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:55:20,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:20,305 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:55:20,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391668480] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:20,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:20,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 17:55:20,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427715754] [2022-10-16 17:55:20,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:20,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 17:55:20,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:20,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 17:55:20,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:55:20,308 INFO L87 Difference]: Start difference. First operand 313 states and 458 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 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 17:55:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:20,473 INFO L93 Difference]: Finished difference Result 756 states and 1121 transitions. [2022-10-16 17:55:20,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:55:20,474 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 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 20 [2022-10-16 17:55:20,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:20,479 INFO L225 Difference]: With dead ends: 756 [2022-10-16 17:55:20,479 INFO L226 Difference]: Without dead ends: 755 [2022-10-16 17:55:20,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 17:55:20,481 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 90 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:20,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 112 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:20,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2022-10-16 17:55:20,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 735. [2022-10-16 17:55:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 730 states have (on average 1.4753424657534246) internal successors, (1077), 734 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:20,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1077 transitions. [2022-10-16 17:55:20,541 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1077 transitions. Word has length 20 [2022-10-16 17:55:20,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:20,542 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 1077 transitions. [2022-10-16 17:55:20,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 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 17:55:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1077 transitions. [2022-10-16 17:55:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 17:55:20,543 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:20,544 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:20,582 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 17:55:20,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:20,759 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:20,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:20,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1090040041, now seen corresponding path program 1 times [2022-10-16 17:55:20,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:20,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504354004] [2022-10-16 17:55:20,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:20,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:55:20,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504354004] [2022-10-16 17:55:20,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504354004] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367146811] [2022-10-16 17:55:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:20,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:20,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:20,866 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 17:55:20,885 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 17:55:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:20,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:55:20,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:55:20,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:55:20,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367146811] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:20,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:55:20,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 17:55:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145782501] [2022-10-16 17:55:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:20,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:55:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:55:20,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:55:20,992 INFO L87 Difference]: Start difference. First operand 735 states and 1077 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:21,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:21,085 INFO L93 Difference]: Finished difference Result 736 states and 1077 transitions. [2022-10-16 17:55:21,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:55:21,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 17:55:21,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:21,092 INFO L225 Difference]: With dead ends: 736 [2022-10-16 17:55:21,092 INFO L226 Difference]: Without dead ends: 735 [2022-10-16 17:55:21,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:55:21,094 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 23 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:21,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 74 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:21,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-10-16 17:55:21,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 734. [2022-10-16 17:55:21,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 730 states have (on average 1.4424657534246574) internal successors, (1053), 733 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:21,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1053 transitions. [2022-10-16 17:55:21,159 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1053 transitions. Word has length 21 [2022-10-16 17:55:21,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:21,160 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1053 transitions. [2022-10-16 17:55:21,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:21,160 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1053 transitions. [2022-10-16 17:55:21,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 17:55:21,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:21,161 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:21,202 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 17:55:21,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:21,376 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:21,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:21,377 INFO L85 PathProgramCache]: Analyzing trace with hash 933748890, now seen corresponding path program 1 times [2022-10-16 17:55:21,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:21,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752738767] [2022-10-16 17:55:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:21,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 17:55:21,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:21,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752738767] [2022-10-16 17:55:21,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752738767] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:21,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:55:21,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:55:21,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50782945] [2022-10-16 17:55:21,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:21,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:55:21,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:21,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:55:21,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:55:21,431 INFO L87 Difference]: Start difference. First operand 734 states and 1053 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:21,536 INFO L93 Difference]: Finished difference Result 1529 states and 2172 transitions. [2022-10-16 17:55:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:55:21,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 17:55:21,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:21,542 INFO L225 Difference]: With dead ends: 1529 [2022-10-16 17:55:21,542 INFO L226 Difference]: Without dead ends: 803 [2022-10-16 17:55:21,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:55:21,546 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:21,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 55 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:21,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-10-16 17:55:21,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 674. [2022-10-16 17:55:21,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 670 states have (on average 1.2955223880597015) internal successors, (868), 673 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:21,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 868 transitions. [2022-10-16 17:55:21,633 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 868 transitions. Word has length 22 [2022-10-16 17:55:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:21,634 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 868 transitions. [2022-10-16 17:55:21,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:21,634 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 868 transitions. [2022-10-16 17:55:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 17:55:21,635 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:21,635 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:21,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 17:55:21,635 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1702692146, now seen corresponding path program 2 times [2022-10-16 17:55:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:21,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358021049] [2022-10-16 17:55:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:21,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:55:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:21,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358021049] [2022-10-16 17:55:21,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358021049] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:21,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360268367] [2022-10-16 17:55:21,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:55:21,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:21,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:21,850 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 17:55:21,859 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 17:55:21,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:55:21,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:55:21,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:55:21,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 17:55:21,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:22,066 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 17:55:22,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360268367] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:22,067 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:22,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2022-10-16 17:55:22,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533826392] [2022-10-16 17:55:22,068 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:22,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:55:22,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:22,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:55:22,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:55:22,069 INFO L87 Difference]: Start difference. First operand 674 states and 868 transitions. Second operand has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:22,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:22,464 INFO L93 Difference]: Finished difference Result 1554 states and 1876 transitions. [2022-10-16 17:55:22,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 17:55:22,465 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 17:55:22,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:22,473 INFO L225 Difference]: With dead ends: 1554 [2022-10-16 17:55:22,473 INFO L226 Difference]: Without dead ends: 1525 [2022-10-16 17:55:22,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=237, Invalid=575, Unknown=0, NotChecked=0, Total=812 [2022-10-16 17:55:22,475 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 308 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:22,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 132 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:22,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1525 states. [2022-10-16 17:55:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1525 to 441. [2022-10-16 17:55:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 438 states have (on average 1.17351598173516) internal successors, (514), 440 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 514 transitions. [2022-10-16 17:55:22,546 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 514 transitions. Word has length 25 [2022-10-16 17:55:22,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:22,547 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 514 transitions. [2022-10-16 17:55:22,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.466666666666667) internal successors, (37), 16 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 514 transitions. [2022-10-16 17:55:22,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 17:55:22,548 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:22,548 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:22,587 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 17:55:22,762 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,SelfDestructingSolverStorable13 [2022-10-16 17:55:22,763 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:22,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:22,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1205221666, now seen corresponding path program 1 times [2022-10-16 17:55:22,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:22,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036564555] [2022-10-16 17:55:22,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:22,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:55:22,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:22,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036564555] [2022-10-16 17:55:22,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036564555] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:22,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681854313] [2022-10-16 17:55:22,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:22,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:22,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:22,850 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 17:55:22,876 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 17:55:22,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:22,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 17:55:22,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:22,970 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:55:22,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:55:22,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681854313] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:55:22,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:55:22,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 17:55:22,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396215874] [2022-10-16 17:55:22,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:55:22,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:55:22,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:22,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:55:22,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:55:22,973 INFO L87 Difference]: Start difference. First operand 441 states and 514 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:23,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:23,049 INFO L93 Difference]: Finished difference Result 442 states and 514 transitions. [2022-10-16 17:55:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:55:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2022-10-16 17:55:23,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:23,052 INFO L225 Difference]: With dead ends: 442 [2022-10-16 17:55:23,052 INFO L226 Difference]: Without dead ends: 441 [2022-10-16 17:55:23,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:55:23,054 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 17 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:23,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 76 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:55:23,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-10-16 17:55:23,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 440. [2022-10-16 17:55:23,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 438 states have (on average 1.1324200913242009) internal successors, (496), 439 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:23,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 496 transitions. [2022-10-16 17:55:23,101 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 496 transitions. Word has length 26 [2022-10-16 17:55:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:23,101 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 496 transitions. [2022-10-16 17:55:23,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 496 transitions. [2022-10-16 17:55:23,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 17:55:23,103 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:23,103 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:23,143 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 17:55:23,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:55:23,318 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:23,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:23,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1313142700, now seen corresponding path program 2 times [2022-10-16 17:55:23,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:23,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328481732] [2022-10-16 17:55:23,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:23,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 96 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 17:55:23,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:23,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328481732] [2022-10-16 17:55:23,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328481732] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:23,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740391068] [2022-10-16 17:55:23,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:55:23,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:23,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:23,504 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 17:55:23,509 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 17:55:23,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 17:55:23,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:55:23,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:55:23,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-16 17:55:23,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:23,744 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-10-16 17:55:23,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740391068] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:23,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:23,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 15 [2022-10-16 17:55:23,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516895505] [2022-10-16 17:55:23,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:23,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 17:55:23,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:23,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 17:55:23,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:55:23,747 INFO L87 Difference]: Start difference. First operand 440 states and 496 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:24,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:24,011 INFO L93 Difference]: Finished difference Result 599 states and 681 transitions. [2022-10-16 17:55:24,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 17:55:24,012 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 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 44 [2022-10-16 17:55:24,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:24,015 INFO L225 Difference]: With dead ends: 599 [2022-10-16 17:55:24,015 INFO L226 Difference]: Without dead ends: 598 [2022-10-16 17:55:24,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=237, Invalid=575, Unknown=0, NotChecked=0, Total=812 [2022-10-16 17:55:24,017 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 193 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:24,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 142 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:24,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2022-10-16 17:55:24,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 145. [2022-10-16 17:55:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.125) internal successors, (162), 144 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:24,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 162 transitions. [2022-10-16 17:55:24,047 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 162 transitions. Word has length 44 [2022-10-16 17:55:24,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:24,048 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 162 transitions. [2022-10-16 17:55:24,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:24,048 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 162 transitions. [2022-10-16 17:55:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 17:55:24,049 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:24,049 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:24,084 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 17:55:24,262 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,SelfDestructingSolverStorable15 [2022-10-16 17:55:24,263 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:24,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:24,264 INFO L85 PathProgramCache]: Analyzing trace with hash 460268489, now seen corresponding path program 1 times [2022-10-16 17:55:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:24,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591467101] [2022-10-16 17:55:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:24,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:24,507 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 17:55:24,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:24,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591467101] [2022-10-16 17:55:24,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591467101] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:24,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742463012] [2022-10-16 17:55:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:24,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:24,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:24,509 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 17:55:24,516 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 17:55:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:24,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 17:55:24,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 17:55:24,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 17:55:24,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742463012] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:24,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:24,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 17:55:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315788608] [2022-10-16 17:55:24,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:24,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 17:55:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:24,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 17:55:24,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-10-16 17:55:24,893 INFO L87 Difference]: Start difference. First operand 145 states and 162 transitions. Second operand has 24 states, 23 states have (on average 5.565217391304348) internal successors, (128), 24 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:25,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:25,095 INFO L93 Difference]: Finished difference Result 316 states and 362 transitions. [2022-10-16 17:55:25,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-10-16 17:55:25,095 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.565217391304348) internal successors, (128), 24 states have internal predecessors, (128), 0 states have call successors, (0), 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 61 [2022-10-16 17:55:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:25,097 INFO L225 Difference]: With dead ends: 316 [2022-10-16 17:55:25,097 INFO L226 Difference]: Without dead ends: 315 [2022-10-16 17:55:25,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 17:55:25,100 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 96 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:25,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 212 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:25,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-10-16 17:55:25,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 313. [2022-10-16 17:55:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 1.1153846153846154) internal successors, (348), 312 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 17:55:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 348 transitions. [2022-10-16 17:55:25,154 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 348 transitions. Word has length 61 [2022-10-16 17:55:25,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:25,154 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 348 transitions. [2022-10-16 17:55:25,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.565217391304348) internal successors, (128), 24 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 348 transitions. [2022-10-16 17:55:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-10-16 17:55:25,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:25,156 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:25,189 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 17:55:25,369 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,SelfDestructingSolverStorable16 [2022-10-16 17:55:25,369 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:25,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash -265685831, now seen corresponding path program 2 times [2022-10-16 17:55:25,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:25,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434420016] [2022-10-16 17:55:25,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:25,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 730 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:55:26,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:26,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434420016] [2022-10-16 17:55:26,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434420016] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:26,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663198554] [2022-10-16 17:55:26,399 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:55:26,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:26,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:26,401 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 17:55:26,426 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 17:55:26,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:55:26,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:55:26,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 17:55:26,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 730 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:55:26,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 730 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-16 17:55:27,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663198554] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:27,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:27,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2022-10-16 17:55:27,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52662448] [2022-10-16 17:55:27,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:27,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-10-16 17:55:27,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:27,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-10-16 17:55:27,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 17:55:27,365 INFO L87 Difference]: Start difference. First operand 313 states and 348 transitions. Second operand has 48 states, 47 states have (on average 5.787234042553192) internal successors, (272), 48 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:27,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:27,966 INFO L93 Difference]: Finished difference Result 652 states and 746 transitions. [2022-10-16 17:55:27,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-10-16 17:55:27,967 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.787234042553192) internal successors, (272), 48 states have internal predecessors, (272), 0 states have call successors, (0), 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 133 [2022-10-16 17:55:27,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:27,970 INFO L225 Difference]: With dead ends: 652 [2022-10-16 17:55:27,970 INFO L226 Difference]: Without dead ends: 651 [2022-10-16 17:55:27,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1048 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1382, Invalid=3448, Unknown=0, NotChecked=0, Total=4830 [2022-10-16 17:55:27,973 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 277 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:27,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 371 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:55:27,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-10-16 17:55:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 649. [2022-10-16 17:55:28,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 648 states have (on average 1.1111111111111112) internal successors, (720), 648 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 720 transitions. [2022-10-16 17:55:28,055 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 720 transitions. Word has length 133 [2022-10-16 17:55:28,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:28,055 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 720 transitions. [2022-10-16 17:55:28,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.787234042553192) internal successors, (272), 48 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:28,056 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 720 transitions. [2022-10-16 17:55:28,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-10-16 17:55:28,059 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:28,060 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:28,089 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 17:55:28,274 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,SelfDestructingSolverStorable17 [2022-10-16 17:55:28,274 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:28,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:28,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1978055015, now seen corresponding path program 3 times [2022-10-16 17:55:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:28,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357937958] [2022-10-16 17:55:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3477 backedges. 0 proven. 3454 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 17:55:31,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:31,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357937958] [2022-10-16 17:55:31,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357937958] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:31,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884915503] [2022-10-16 17:55:31,567 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:55:31,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:31,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:31,568 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 17:55:31,569 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 17:55:32,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2022-10-16 17:55:32,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:55:32,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-16 17:55:32,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:55:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3477 backedges. 0 proven. 3454 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 17:55:33,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:55:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3477 backedges. 0 proven. 3454 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 17:55:35,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884915503] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:55:35,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:55:35,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 95 [2022-10-16 17:55:35,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627543270] [2022-10-16 17:55:35,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:55:35,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-10-16 17:55:35,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:55:35,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-10-16 17:55:35,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2351, Invalid=6769, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 17:55:35,541 INFO L87 Difference]: Start difference. First operand 649 states and 720 transitions. Second operand has 96 states, 95 states have (on average 5.894736842105263) internal successors, (560), 96 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:55:37,594 INFO L93 Difference]: Finished difference Result 1324 states and 1514 transitions. [2022-10-16 17:55:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-10-16 17:55:37,596 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.894736842105263) internal successors, (560), 96 states have internal predecessors, (560), 0 states have call successors, (0), 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 277 [2022-10-16 17:55:37,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:55:37,604 INFO L225 Difference]: With dead ends: 1324 [2022-10-16 17:55:37,605 INFO L226 Difference]: Without dead ends: 1323 [2022-10-16 17:55:37,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4408 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5642, Invalid=14380, Unknown=0, NotChecked=0, Total=20022 [2022-10-16 17:55:37,613 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 702 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:55:37,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 634 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:55:37,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1323 states. [2022-10-16 17:55:37,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1323 to 1321. [2022-10-16 17:55:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1320 states have (on average 1.1090909090909091) internal successors, (1464), 1320 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:37,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1464 transitions. [2022-10-16 17:55:37,765 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1464 transitions. Word has length 277 [2022-10-16 17:55:37,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:55:37,766 INFO L495 AbstractCegarLoop]: Abstraction has 1321 states and 1464 transitions. [2022-10-16 17:55:37,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.894736842105263) internal successors, (560), 96 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:55:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1464 transitions. [2022-10-16 17:55:37,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-10-16 17:55:37,777 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:55:37,778 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2022-10-16 17:55:37,807 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 17:55:37,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:37,993 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:55:37,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:55:37,994 INFO L85 PathProgramCache]: Analyzing trace with hash 102672985, now seen corresponding path program 4 times [2022-10-16 17:55:37,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:55:37,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205529403] [2022-10-16 17:55:37,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:55:37,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:55:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:55:48,425 INFO L134 CoverageAnalysis]: Checked inductivity of 14997 backedges. 0 proven. 14950 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-10-16 17:55:48,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:55:48,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205529403] [2022-10-16 17:55:48,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205529403] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:55:48,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476085890] [2022-10-16 17:55:48,426 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:55:48,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:55:48,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:55:48,427 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 17:55:48,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process