/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/reducercommutativity/sep40-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:56:43,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:56:43,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:56:43,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:56:43,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:56:43,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:56:43,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:56:43,209 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:56:43,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:56:43,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:56:43,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:56:43,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:56:43,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:56:43,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:56:43,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:56:43,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:56:43,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:56:43,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:56:43,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:56:43,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:56:43,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:56:43,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:56:43,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:56:43,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:56:43,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:56:43,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:56:43,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:56:43,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:56:43,263 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:56:43,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:56:43,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:56:43,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:56:43,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:56:43,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:56:43,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:56:43,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:56:43,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:56:43,298 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:56:43,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:56:43,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:56:43,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:56:43,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:56:43,300 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:56:43,300 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:56:43,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:56:43,301 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:56:43,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:56:43,301 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:56:43,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:56:43,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:56:43,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:56:43,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:56:43,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:56:43,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:56:43,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:56:43,303 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:56:43,303 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:56:43,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:56:43,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:56:43,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:56:43,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:56:43,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:56:43,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:56:43,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:56:43,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:56:43,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:56:43,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:56:43,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:56:43,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:56:43,306 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:56:43,306 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:56:43,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:56:43,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:56:43,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:56:43,724 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:56:43,725 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:56:43,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/sep40-1.i [2022-10-16 14:56:43,816 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4432fd165/de0b1e1cb1dd4fbeaad01c86f9e70b4e/FLAG6dadf6409 [2022-10-16 14:56:44,509 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:56:44,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep40-1.i [2022-10-16 14:56:44,521 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4432fd165/de0b1e1cb1dd4fbeaad01c86f9e70b4e/FLAG6dadf6409 [2022-10-16 14:56:44,869 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4432fd165/de0b1e1cb1dd4fbeaad01c86f9e70b4e [2022-10-16 14:56:44,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:56:44,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:56:44,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:56:44,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:56:44,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:56:44,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:44" (1/1) ... [2022-10-16 14:56:44,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d2ee2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:44, skipping insertion in model container [2022-10-16 14:56:44,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:56:44" (1/1) ... [2022-10-16 14:56:44,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:56:44,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:56:45,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep40-1.i[1293,1306] [2022-10-16 14:56:45,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:56:45,090 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:56:45,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/sep40-1.i[1293,1306] [2022-10-16 14:56:45,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:56:45,129 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:56:45,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45 WrapperNode [2022-10-16 14:56:45,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:56:45,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:56:45,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:56:45,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:56:45,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,173 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 73 [2022-10-16 14:56:45,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:56:45,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:56:45,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:56:45,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:56:45,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,203 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:56:45,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:56:45,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:56:45,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:56:45,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (1/1) ... [2022-10-16 14:56:45,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:56:45,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:45,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:56:45,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:56:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:56:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:56:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:56:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:56:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:56:45,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:56:45,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:56:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:56:45,327 INFO L130 BoogieDeclarations]: Found specification of procedure sep [2022-10-16 14:56:45,327 INFO L138 BoogieDeclarations]: Found implementation of procedure sep [2022-10-16 14:56:45,410 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:56:45,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:56:45,696 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:56:45,713 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:56:45,714 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:56:45,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:45 BoogieIcfgContainer [2022-10-16 14:56:45,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:56:45,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:56:45,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:56:45,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:56:45,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:56:44" (1/3) ... [2022-10-16 14:56:45,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6645638f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:45, skipping insertion in model container [2022-10-16 14:56:45,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:56:45" (2/3) ... [2022-10-16 14:56:45,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6645638f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:56:45, skipping insertion in model container [2022-10-16 14:56:45,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:56:45" (3/3) ... [2022-10-16 14:56:45,743 INFO L112 eAbstractionObserver]: Analyzing ICFG sep40-1.i [2022-10-16 14:56:45,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:56:45,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 14:56:45,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:56:45,943 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;@1d57d222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:56:45,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 14:56:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.625) internal successors, (52), 44 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:56:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:56:45,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:45,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:56:45,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:45,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 14:56:45,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:45,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081170739] [2022-10-16 14:56:45,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:45,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:46,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:46,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:46,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081170739] [2022-10-16 14:56:46,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081170739] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:46,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:46,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:46,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768358523] [2022-10-16 14:56:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:46,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:46,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:46,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:46,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:46,376 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.625) internal successors, (52), 44 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:46,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:46,506 INFO L93 Difference]: Finished difference Result 96 states and 117 transitions. [2022-10-16 14:56:46,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:46,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:56:46,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:46,523 INFO L225 Difference]: With dead ends: 96 [2022-10-16 14:56:46,524 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 14:56:46,528 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 14:56:46,533 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:46,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 146 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:46,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 14:56:46,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-10-16 14:56:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 43 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-10-16 14:56:46,583 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 5 [2022-10-16 14:56:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:46,584 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-10-16 14:56:46,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-10-16 14:56:46,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:56:46,585 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:46,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:56:46,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:56:46,586 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:46,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 14:56:46,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:46,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279755586] [2022-10-16 14:56:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:56:46,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:46,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279755586] [2022-10-16 14:56:46,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279755586] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:46,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:46,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:46,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85135666] [2022-10-16 14:56:46,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:46,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:46,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:46,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:46,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:46,686 INFO L87 Difference]: Start difference. First operand 47 states and 52 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 14:56:46,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:46,730 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2022-10-16 14:56:46,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:46,733 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 14:56:46,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:46,734 INFO L225 Difference]: With dead ends: 47 [2022-10-16 14:56:46,735 INFO L226 Difference]: Without dead ends: 46 [2022-10-16 14:56:46,735 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 14:56:46,738 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:46,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 123 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-10-16 14:56:46,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-10-16 14:56:46,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:46,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-10-16 14:56:46,749 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 9 [2022-10-16 14:56:46,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:46,750 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-10-16 14:56:46,750 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 14:56:46,750 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-10-16 14:56:46,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:56:46,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:46,751 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:56:46,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:56:46,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 14:56:46,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:46,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226219144] [2022-10-16 14:56:46,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:46,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:46,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:46,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226219144] [2022-10-16 14:56:46,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226219144] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:46,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900888431] [2022-10-16 14:56:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:46,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:46,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:46,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:46,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:56:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:47,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:56:47,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:47,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:47,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:56:47,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900888431] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:47,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:56:47,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:56:47,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359900756] [2022-10-16 14:56:47,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:47,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:56:47,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:47,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:56:47,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:56:47,132 INFO L87 Difference]: Start difference. First operand 46 states and 51 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:47,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:47,233 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-10-16 14:56:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:56:47,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:56:47,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:47,237 INFO L225 Difference]: With dead ends: 46 [2022-10-16 14:56:47,237 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 14:56:47,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:56:47,240 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 34 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:47,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 145 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:47,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 14:56:47,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-10-16 14:56:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.5) internal successors, (42), 38 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-10-16 14:56:47,257 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 10 [2022-10-16 14:56:47,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:47,259 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-10-16 14:56:47,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:47,261 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-10-16 14:56:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:56:47,262 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:47,262 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:47,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:47,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:47,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:47,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:47,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1512525501, now seen corresponding path program 1 times [2022-10-16 14:56:47,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:47,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686884996] [2022-10-16 14:56:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:47,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:47,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:47,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:47,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:47,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686884996] [2022-10-16 14:56:47,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686884996] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:47,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435016089] [2022-10-16 14:56:47,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:47,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:47,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:47,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:47,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:56:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:47,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:56:47,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:47,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:47,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:47,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435016089] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:47,719 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:47,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:56:47,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106165301] [2022-10-16 14:56:47,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:47,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:56:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:47,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:56:47,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:56:47,722 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:47,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:47,779 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2022-10-16 14:56:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:56:47,780 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:56:47,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:47,781 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:56:47,782 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 14:56:47,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:56:47,784 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 9 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:47,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 286 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:47,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 14:56:47,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-16 14:56:47,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.3888888888888888) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:47,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-10-16 14:56:47,796 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 12 [2022-10-16 14:56:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:47,797 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-10-16 14:56:47,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:47,800 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-10-16 14:56:47,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:56:47,801 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:47,801 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:47,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:48,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 14:56:48,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:48,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:48,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1503946571, now seen corresponding path program 2 times [2022-10-16 14:56:48,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:48,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485302760] [2022-10-16 14:56:48,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:48,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:48,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:48,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485302760] [2022-10-16 14:56:48,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485302760] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:48,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:48,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:48,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507999502] [2022-10-16 14:56:48,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:48,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:48,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:48,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:48,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:48,152 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:48,185 INFO L93 Difference]: Finished difference Result 63 states and 71 transitions. [2022-10-16 14:56:48,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:48,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:56:48,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:48,190 INFO L225 Difference]: With dead ends: 63 [2022-10-16 14:56:48,190 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:56:48,190 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 14:56:48,192 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 10 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:48,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 120 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:48,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:56:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2022-10-16 14:56:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.4) internal successors, (56), 50 states have internal predecessors, (56), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:48,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2022-10-16 14:56:48,210 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 20 [2022-10-16 14:56:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:48,214 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2022-10-16 14:56:48,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,214 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2022-10-16 14:56:48,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:56:48,216 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:48,216 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:48,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:56:48,216 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:48,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:48,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1503946763, now seen corresponding path program 1 times [2022-10-16 14:56:48,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:48,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324841798] [2022-10-16 14:56:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:48,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:48,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:48,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324841798] [2022-10-16 14:56:48,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324841798] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:48,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:48,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:48,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401880635] [2022-10-16 14:56:48,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:48,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:48,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:48,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:48,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:48,344 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:48,376 INFO L93 Difference]: Finished difference Result 61 states and 69 transitions. [2022-10-16 14:56:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:48,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:56:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:48,378 INFO L225 Difference]: With dead ends: 61 [2022-10-16 14:56:48,378 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:56:48,378 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 14:56:48,381 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 8 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:48,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 120 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:48,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:56:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 56. [2022-10-16 14:56:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.380952380952381) internal successors, (58), 52 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2022-10-16 14:56:48,398 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 20 [2022-10-16 14:56:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:48,398 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2022-10-16 14:56:48,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2022-10-16 14:56:48,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 14:56:48,402 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:48,403 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:48,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:56:48,403 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:48,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:48,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1026432674, now seen corresponding path program 1 times [2022-10-16 14:56:48,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:48,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98686509] [2022-10-16 14:56:48,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:48,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:48,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:48,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98686509] [2022-10-16 14:56:48,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98686509] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:56:48,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:56:48,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:56:48,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680096529] [2022-10-16 14:56:48,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:56:48,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:56:48,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:48,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:56:48,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:56:48,584 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:48,621 INFO L93 Difference]: Finished difference Result 99 states and 115 transitions. [2022-10-16 14:56:48,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:56:48,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 14:56:48,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:48,625 INFO L225 Difference]: With dead ends: 99 [2022-10-16 14:56:48,625 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:56:48,629 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 14:56:48,639 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:48,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 123 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:56:48,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:56:48,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-16 14:56:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:48,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 65 transitions. [2022-10-16 14:56:48,662 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 65 transitions. Word has length 23 [2022-10-16 14:56:48,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:48,663 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 65 transitions. [2022-10-16 14:56:48,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:48,663 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 65 transitions. [2022-10-16 14:56:48,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:56:48,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:48,664 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:48,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:56:48,666 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:48,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:48,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1515961805, now seen corresponding path program 1 times [2022-10-16 14:56:48,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:48,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168020219] [2022-10-16 14:56:48,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:48,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,866 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:56:48,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:48,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168020219] [2022-10-16 14:56:48,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168020219] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:48,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366897692] [2022-10-16 14:56:48,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:48,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:48,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:48,883 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:48,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:56:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:48,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:56:48,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:49,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:56:49,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:49,167 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:56:49,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366897692] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:49,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:49,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 20 [2022-10-16 14:56:49,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859430598] [2022-10-16 14:56:49,169 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:49,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:56:49,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:49,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:56:49,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:56:49,171 INFO L87 Difference]: Start difference. First operand 59 states and 65 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:49,389 INFO L93 Difference]: Finished difference Result 134 states and 153 transitions. [2022-10-16 14:56:49,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:56:49,390 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 14:56:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:49,391 INFO L225 Difference]: With dead ends: 134 [2022-10-16 14:56:49,391 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:56:49,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:56:49,394 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 62 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:49,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 325 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:56:49,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 81. [2022-10-16 14:56:49,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 77 states have internal predecessors, (84), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:49,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2022-10-16 14:56:49,405 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 27 [2022-10-16 14:56:49,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:49,405 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2022-10-16 14:56:49,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 20 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2022-10-16 14:56:49,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-10-16 14:56:49,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:49,407 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:49,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:49,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:49,623 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:49,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:49,624 INFO L85 PathProgramCache]: Analyzing trace with hash 720386173, now seen corresponding path program 1 times [2022-10-16 14:56:49,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:49,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862645055] [2022-10-16 14:56:49,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:49,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:49,768 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 14:56:49,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:49,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862645055] [2022-10-16 14:56:49,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862645055] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:49,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143985059] [2022-10-16 14:56:49,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:49,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:49,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:49,773 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:49,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:56:49,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:49,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:56:49,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:50,074 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:50,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:50,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143985059] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:50,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:50,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 36 [2022-10-16 14:56:50,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768255549] [2022-10-16 14:56:50,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:50,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 14:56:50,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:50,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 14:56:50,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=979, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:56:50,422 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 36 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:50,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:50,851 INFO L93 Difference]: Finished difference Result 180 states and 207 transitions. [2022-10-16 14:56:50,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 14:56:50,852 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 36 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2022-10-16 14:56:50,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:50,853 INFO L225 Difference]: With dead ends: 180 [2022-10-16 14:56:50,854 INFO L226 Difference]: Without dead ends: 130 [2022-10-16 14:56:50,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=647, Invalid=2109, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 14:56:50,857 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 102 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:50,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 325 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:56:50,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-16 14:56:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 120. [2022-10-16 14:56:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 106 states have (on average 1.2075471698113207) internal successors, (128), 116 states have internal predecessors, (128), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:50,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 133 transitions. [2022-10-16 14:56:50,869 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 133 transitions. Word has length 43 [2022-10-16 14:56:50,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:50,873 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 133 transitions. [2022-10-16 14:56:50,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.4444444444444446) internal successors, (88), 36 states have internal predecessors, (88), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:50,873 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 133 transitions. [2022-10-16 14:56:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 14:56:50,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:50,876 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:50,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:51,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:51,077 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:51,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:51,078 INFO L85 PathProgramCache]: Analyzing trace with hash -710240669, now seen corresponding path program 1 times [2022-10-16 14:56:51,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:51,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877979076] [2022-10-16 14:56:51,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:51,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:52,077 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:52,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:52,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877979076] [2022-10-16 14:56:52,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877979076] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:52,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943965817] [2022-10-16 14:56:52,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:52,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:52,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:52,080 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:52,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:56:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:52,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 14:56:52,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:52,326 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:52,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:53,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943965817] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:53,334 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:53,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2022-10-16 14:56:53,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247885287] [2022-10-16 14:56:53,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:53,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-10-16 14:56:53,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:53,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-10-16 14:56:53,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 14:56:53,340 INFO L87 Difference]: Start difference. First operand 120 states and 133 transitions. Second operand has 66 states, 66 states have (on average 2.121212121212121) internal successors, (140), 66 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:54,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:54,227 INFO L93 Difference]: Finished difference Result 241 states and 282 transitions. [2022-10-16 14:56:54,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 14:56:54,228 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 2.121212121212121) internal successors, (140), 66 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-10-16 14:56:54,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:54,229 INFO L225 Difference]: With dead ends: 241 [2022-10-16 14:56:54,230 INFO L226 Difference]: Without dead ends: 184 [2022-10-16 14:56:54,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2595, Invalid=6525, Unknown=0, NotChecked=0, Total=9120 [2022-10-16 14:56:54,236 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 235 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:54,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 286 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:56:54,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-10-16 14:56:54,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-10-16 14:56:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 170 states have (on average 1.1294117647058823) internal successors, (192), 180 states have internal predecessors, (192), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:56:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 197 transitions. [2022-10-16 14:56:54,251 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 197 transitions. Word has length 75 [2022-10-16 14:56:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:54,251 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 197 transitions. [2022-10-16 14:56:54,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.121212121212121) internal successors, (140), 66 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:54,252 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 197 transitions. [2022-10-16 14:56:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2022-10-16 14:56:54,254 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:54,254 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:54,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:54,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 14:56:54,468 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:56:54,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:54,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1689959971, now seen corresponding path program 2 times [2022-10-16 14:56:54,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:54,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711514232] [2022-10-16 14:56:54,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:54,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:57,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:57,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711514232] [2022-10-16 14:56:57,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711514232] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:57,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229671970] [2022-10-16 14:56:57,814 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:56:57,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:57,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:57,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:57,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:56:57,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:56:57,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:57,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 14:56:57,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:56:58,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1893 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:57:00,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229671970] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:00,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:00,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 83 [2022-10-16 14:57:00,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012998089] [2022-10-16 14:57:00,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:00,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-10-16 14:57:00,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:00,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-10-16 14:57:00,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1763, Invalid=5043, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 14:57:00,337 INFO L87 Difference]: Start difference. First operand 184 states and 197 transitions. Second operand has 83 states, 83 states have (on average 2.1204819277108435) internal successors, (176), 83 states have internal predecessors, (176), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:01,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:01,797 INFO L93 Difference]: Finished difference Result 277 states and 311 transitions. [2022-10-16 14:57:01,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-10-16 14:57:01,797 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 83 states have (on average 2.1204819277108435) internal successors, (176), 83 states have internal predecessors, (176), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2022-10-16 14:57:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:01,799 INFO L225 Difference]: With dead ends: 277 [2022-10-16 14:57:01,800 INFO L226 Difference]: Without dead ends: 220 [2022-10-16 14:57:01,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 213 SyntacticMatches, 47 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5529 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=4183, Invalid=10579, Unknown=0, NotChecked=0, Total=14762 [2022-10-16 14:57:01,806 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 284 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:01,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 408 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:01,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-10-16 14:57:01,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-10-16 14:57:01,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 206 states have (on average 1.1067961165048543) internal successors, (228), 216 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:01,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 233 transitions. [2022-10-16 14:57:01,818 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 233 transitions. Word has length 139 [2022-10-16 14:57:01,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:01,819 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 233 transitions. [2022-10-16 14:57:01,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 2.1204819277108435) internal successors, (176), 83 states have internal predecessors, (176), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:01,819 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 233 transitions. [2022-10-16 14:57:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-16 14:57:01,821 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:01,822 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:01,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:02,035 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 14:57:02,036 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:02,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:02,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1008032385, now seen corresponding path program 3 times [2022-10-16 14:57:02,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:02,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78081925] [2022-10-16 14:57:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:02,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:02,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:02,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78081925] [2022-10-16 14:57:02,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78081925] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:02,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436747772] [2022-10-16 14:57:02,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:57:02,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:02,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:02,400 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:02,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:57:02,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:57:02,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:02,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:57:02,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:02,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:57:02,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436747772] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:02,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:57:02,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:57:02,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620928354] [2022-10-16 14:57:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:02,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:57:02,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:02,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:57:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:57:02,532 INFO L87 Difference]: Start difference. First operand 220 states and 233 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:02,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:02,595 INFO L93 Difference]: Finished difference Result 262 states and 287 transitions. [2022-10-16 14:57:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:57:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2022-10-16 14:57:02,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:02,599 INFO L225 Difference]: With dead ends: 262 [2022-10-16 14:57:02,599 INFO L226 Difference]: Without dead ends: 260 [2022-10-16 14:57:02,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:57:02,601 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 35 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:02,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 211 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-10-16 14:57:02,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 234. [2022-10-16 14:57:02,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 220 states have (on average 1.1454545454545455) internal successors, (252), 230 states have internal predecessors, (252), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:02,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 257 transitions. [2022-10-16 14:57:02,617 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 257 transitions. Word has length 175 [2022-10-16 14:57:02,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:02,618 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 257 transitions. [2022-10-16 14:57:02,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:02,619 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 257 transitions. [2022-10-16 14:57:02,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 14:57:02,628 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:02,628 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:02,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:02,843 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 14:57:02,843 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:02,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash 382713038, now seen corresponding path program 1 times [2022-10-16 14:57:02,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:02,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962502024] [2022-10-16 14:57:02,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:02,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:03,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:03,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962502024] [2022-10-16 14:57:03,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962502024] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:03,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075747905] [2022-10-16 14:57:03,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:03,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:03,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:03,166 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:03,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:57:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:03,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:57:03,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:03,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:57:03,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075747905] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:03,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:57:03,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:57:03,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920264715] [2022-10-16 14:57:03,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:03,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:57:03,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:03,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:57:03,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:57:03,378 INFO L87 Difference]: Start difference. First operand 234 states and 257 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:03,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:03,418 INFO L93 Difference]: Finished difference Result 254 states and 281 transitions. [2022-10-16 14:57:03,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:57:03,419 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-10-16 14:57:03,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:03,421 INFO L225 Difference]: With dead ends: 254 [2022-10-16 14:57:03,421 INFO L226 Difference]: Without dead ends: 253 [2022-10-16 14:57:03,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 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 14:57:03,423 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 29 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:03,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 127 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:03,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-10-16 14:57:03,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 241. [2022-10-16 14:57:03,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 227 states have (on average 1.1629955947136563) internal successors, (264), 237 states have internal predecessors, (264), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:03,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 269 transitions. [2022-10-16 14:57:03,436 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 269 transitions. Word has length 176 [2022-10-16 14:57:03,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:03,436 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 269 transitions. [2022-10-16 14:57:03,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:03,437 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 269 transitions. [2022-10-16 14:57:03,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 14:57:03,439 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:03,439 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:03,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:03,654 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,SelfDestructingSolverStorable12 [2022-10-16 14:57:03,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:03,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:03,656 INFO L85 PathProgramCache]: Analyzing trace with hash 382718996, now seen corresponding path program 1 times [2022-10-16 14:57:03,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:03,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381338199] [2022-10-16 14:57:03,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:03,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:03,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:03,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381338199] [2022-10-16 14:57:03,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381338199] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:03,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73873806] [2022-10-16 14:57:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:03,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:03,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:03,939 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:03,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:57:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:04,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:57:04,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:04,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:04,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:57:04,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73873806] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:04,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:57:04,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:57:04,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304467906] [2022-10-16 14:57:04,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:04,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:57:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:04,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:57:04,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:57:04,155 INFO L87 Difference]: Start difference. First operand 241 states and 269 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:04,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:04,225 INFO L93 Difference]: Finished difference Result 285 states and 326 transitions. [2022-10-16 14:57:04,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:57:04,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-10-16 14:57:04,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:04,228 INFO L225 Difference]: With dead ends: 285 [2022-10-16 14:57:04,229 INFO L226 Difference]: Without dead ends: 283 [2022-10-16 14:57:04,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:57:04,230 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 32 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:04,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 202 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:04,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-10-16 14:57:04,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 255. [2022-10-16 14:57:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 241 states have (on average 1.1908713692946058) internal successors, (287), 251 states have internal predecessors, (287), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:04,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 292 transitions. [2022-10-16 14:57:04,242 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 292 transitions. Word has length 176 [2022-10-16 14:57:04,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:04,243 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 292 transitions. [2022-10-16 14:57:04,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:04,243 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 292 transitions. [2022-10-16 14:57:04,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 14:57:04,247 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:04,247 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:04,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:04,460 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,SelfDestructingSolverStorable13 [2022-10-16 14:57:04,461 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting sepErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:04,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:04,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1184232760, now seen corresponding path program 1 times [2022-10-16 14:57:04,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:04,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75115831] [2022-10-16 14:57:04,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:04,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:04,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:04,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:04,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75115831] [2022-10-16 14:57:04,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75115831] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:04,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678061676] [2022-10-16 14:57:04,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:04,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:04,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:04,744 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:04,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:57:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:04,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:57:04,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:04,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:04,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:04,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3162 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:04,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678061676] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:04,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:04,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:57:04,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472480670] [2022-10-16 14:57:04,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:04,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:57:04,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:04,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:57:04,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:57:04,997 INFO L87 Difference]: Start difference. First operand 255 states and 292 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:05,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:05,181 INFO L93 Difference]: Finished difference Result 309 states and 367 transitions. [2022-10-16 14:57:05,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:57:05,182 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-10-16 14:57:05,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:05,186 INFO L225 Difference]: With dead ends: 309 [2022-10-16 14:57:05,186 INFO L226 Difference]: Without dead ends: 307 [2022-10-16 14:57:05,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:57:05,189 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:05,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 277 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:05,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-10-16 14:57:05,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 268. [2022-10-16 14:57:05,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 255 states have (on average 1.203921568627451) internal successors, (307), 264 states have internal predecessors, (307), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 312 transitions. [2022-10-16 14:57:05,209 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 312 transitions. Word has length 176 [2022-10-16 14:57:05,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:05,210 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 312 transitions. [2022-10-16 14:57:05,211 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:05,211 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 312 transitions. [2022-10-16 14:57:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 14:57:05,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:05,216 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:05,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:05,430 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,SelfDestructingSolverStorable14 [2022-10-16 14:57:05,430 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:05,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:05,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1184226802, now seen corresponding path program 1 times [2022-10-16 14:57:05,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:05,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436031197] [2022-10-16 14:57:05,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:05,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:05,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:05,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:05,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436031197] [2022-10-16 14:57:05,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436031197] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:05,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161767966] [2022-10-16 14:57:05,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:05,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:05,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:05,700 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:05,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:57:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:05,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:57:05,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:05,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:05,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3164 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:05,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161767966] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:05,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:05,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:57:05,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861275199] [2022-10-16 14:57:05,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:05,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:57:05,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:05,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:57:05,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:57:05,972 INFO L87 Difference]: Start difference. First operand 268 states and 312 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:06,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:06,054 INFO L93 Difference]: Finished difference Result 306 states and 361 transitions. [2022-10-16 14:57:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:57:06,055 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 176 [2022-10-16 14:57:06,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:06,059 INFO L225 Difference]: With dead ends: 306 [2022-10-16 14:57:06,059 INFO L226 Difference]: Without dead ends: 305 [2022-10-16 14:57:06,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:57:06,061 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 70 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:06,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 171 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-10-16 14:57:06,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 286. [2022-10-16 14:57:06,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 273 states have (on average 1.2271062271062272) internal successors, (335), 282 states have internal predecessors, (335), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:06,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 340 transitions. [2022-10-16 14:57:06,077 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 340 transitions. Word has length 176 [2022-10-16 14:57:06,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:06,077 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 340 transitions. [2022-10-16 14:57:06,077 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:06,078 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 340 transitions. [2022-10-16 14:57:06,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-10-16 14:57:06,080 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:06,080 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:06,124 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 14:57:06,294 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,SelfDestructingSolverStorable15 [2022-10-16 14:57:06,294 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting sepErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:06,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:06,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1579954384, now seen corresponding path program 1 times [2022-10-16 14:57:06,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:06,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82992506] [2022-10-16 14:57:06,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:06,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:06,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3166 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3161 trivial. 0 not checked. [2022-10-16 14:57:06,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:06,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82992506] [2022-10-16 14:57:06,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82992506] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:06,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:57:06,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:57:06,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139498693] [2022-10-16 14:57:06,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:06,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:57:06,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:06,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:57:06,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:57:06,509 INFO L87 Difference]: Start difference. First operand 286 states and 340 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:06,533 INFO L93 Difference]: Finished difference Result 286 states and 340 transitions. [2022-10-16 14:57:06,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:57:06,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2022-10-16 14:57:06,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:06,536 INFO L225 Difference]: With dead ends: 286 [2022-10-16 14:57:06,536 INFO L226 Difference]: Without dead ends: 285 [2022-10-16 14:57:06,537 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 14:57:06,539 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 11 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:06,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 106 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-10-16 14:57:06,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-10-16 14:57:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 273 states have (on average 1.1868131868131868) internal successors, (324), 281 states have internal predecessors, (324), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 329 transitions. [2022-10-16 14:57:06,555 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 329 transitions. Word has length 178 [2022-10-16 14:57:06,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:06,556 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 329 transitions. [2022-10-16 14:57:06,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:06,556 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 329 transitions. [2022-10-16 14:57:06,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-10-16 14:57:06,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:06,559 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:06,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 14:57:06,559 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting sepErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:06,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:06,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1733945533, now seen corresponding path program 1 times [2022-10-16 14:57:06,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:06,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061136810] [2022-10-16 14:57:06,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:06,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3167 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:06,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:06,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061136810] [2022-10-16 14:57:06,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061136810] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:06,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315496158] [2022-10-16 14:57:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:06,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:06,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:06,855 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 14:57:06,876 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 14:57:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:07,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:57:07,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:07,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3167 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:07,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:57:07,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315496158] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:07,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:57:07,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:57:07,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156204562] [2022-10-16 14:57:07,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:07,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:57:07,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:07,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:57:07,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:57:07,084 INFO L87 Difference]: Start difference. First operand 285 states and 329 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:07,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:07,115 INFO L93 Difference]: Finished difference Result 285 states and 329 transitions. [2022-10-16 14:57:07,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:57:07,115 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 179 [2022-10-16 14:57:07,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:07,118 INFO L225 Difference]: With dead ends: 285 [2022-10-16 14:57:07,118 INFO L226 Difference]: Without dead ends: 284 [2022-10-16 14:57:07,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 177 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 14:57:07,119 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 16 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:07,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 190 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:07,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2022-10-16 14:57:07,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2022-10-16 14:57:07,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 273 states have (on average 1.1465201465201464) internal successors, (313), 280 states have internal predecessors, (313), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:07,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 318 transitions. [2022-10-16 14:57:07,136 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 318 transitions. Word has length 179 [2022-10-16 14:57:07,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:07,137 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 318 transitions. [2022-10-16 14:57:07,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 318 transitions. [2022-10-16 14:57:07,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 14:57:07,139 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:07,139 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:07,177 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 14:57:07,353 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 14:57:07,354 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:07,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:07,355 INFO L85 PathProgramCache]: Analyzing trace with hash -399609185, now seen corresponding path program 2 times [2022-10-16 14:57:07,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:07,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437479488] [2022-10-16 14:57:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:07,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3173 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:07,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:07,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437479488] [2022-10-16 14:57:07,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437479488] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:07,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51666476] [2022-10-16 14:57:07,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:57:07,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:07,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:07,691 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 14:57:07,699 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 14:57:07,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:57:07,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:07,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:57:07,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3173 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:07,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:07,998 INFO L134 CoverageAnalysis]: Checked inductivity of 3173 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:07,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51666476] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:07,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:07,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:57:07,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431440193] [2022-10-16 14:57:07,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:08,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:57:08,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:08,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:57:08,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:57:08,002 INFO L87 Difference]: Start difference. First operand 284 states and 318 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:08,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:08,103 INFO L93 Difference]: Finished difference Result 341 states and 391 transitions. [2022-10-16 14:57:08,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:57:08,104 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-10-16 14:57:08,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:08,107 INFO L225 Difference]: With dead ends: 341 [2022-10-16 14:57:08,107 INFO L226 Difference]: Without dead ends: 340 [2022-10-16 14:57:08,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:57:08,108 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 93 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:08,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 225 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-10-16 14:57:08,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 312. [2022-10-16 14:57:08,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 301 states have (on average 1.159468438538206) internal successors, (349), 308 states have internal predecessors, (349), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:08,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 354 transitions. [2022-10-16 14:57:08,123 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 354 transitions. Word has length 182 [2022-10-16 14:57:08,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:08,124 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 354 transitions. [2022-10-16 14:57:08,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:08,124 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 354 transitions. [2022-10-16 14:57:08,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 14:57:08,126 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:08,126 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:08,166 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 14:57:08,340 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 14:57:08,341 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting sepErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:08,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:08,342 INFO L85 PathProgramCache]: Analyzing trace with hash -399608993, now seen corresponding path program 2 times [2022-10-16 14:57:08,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:08,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575721201] [2022-10-16 14:57:08,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:08,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:08,629 INFO L134 CoverageAnalysis]: Checked inductivity of 3171 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:08,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:08,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575721201] [2022-10-16 14:57:08,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575721201] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:08,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768403957] [2022-10-16 14:57:08,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:57:08,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:08,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:08,632 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 14:57:08,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:57:08,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:57:08,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:08,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:57:08,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:08,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3171 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:08,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 3171 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:08,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768403957] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:08,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:08,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-16 14:57:08,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258699703] [2022-10-16 14:57:08,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:08,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 14:57:08,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:08,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 14:57:08,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:57:08,920 INFO L87 Difference]: Start difference. First operand 312 states and 354 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:09,070 INFO L93 Difference]: Finished difference Result 357 states and 416 transitions. [2022-10-16 14:57:09,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:57:09,070 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2022-10-16 14:57:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:09,073 INFO L225 Difference]: With dead ends: 357 [2022-10-16 14:57:09,073 INFO L226 Difference]: Without dead ends: 355 [2022-10-16 14:57:09,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:57:09,074 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 76 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:09,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 241 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-10-16 14:57:09,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 298. [2022-10-16 14:57:09,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 288 states have (on average 1.1423611111111112) internal successors, (329), 294 states have internal predecessors, (329), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 334 transitions. [2022-10-16 14:57:09,091 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 334 transitions. Word has length 182 [2022-10-16 14:57:09,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:09,092 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 334 transitions. [2022-10-16 14:57:09,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:09,092 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 334 transitions. [2022-10-16 14:57:09,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-10-16 14:57:09,095 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:09,096 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:09,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:09,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:09,310 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:09,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:09,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1069922584, now seen corresponding path program 1 times [2022-10-16 14:57:09,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:09,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422391559] [2022-10-16 14:57:09,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:09,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:09,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3171 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:09,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:09,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422391559] [2022-10-16 14:57:09,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422391559] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:09,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1846145661] [2022-10-16 14:57:09,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:09,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:09,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:09,629 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:09,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:57:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:09,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:57:09,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3171 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:09,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3171 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:09,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1846145661] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:09,928 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:09,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-10-16 14:57:09,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646286407] [2022-10-16 14:57:09,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:09,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:57:09,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:09,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:57:09,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:57:09,930 INFO L87 Difference]: Start difference. First operand 298 states and 334 transitions. Second operand has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:10,137 INFO L93 Difference]: Finished difference Result 396 states and 460 transitions. [2022-10-16 14:57:10,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:57:10,137 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2022-10-16 14:57:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:10,140 INFO L225 Difference]: With dead ends: 396 [2022-10-16 14:57:10,140 INFO L226 Difference]: Without dead ends: 395 [2022-10-16 14:57:10,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:57:10,142 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 47 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:10,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 300 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:10,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-10-16 14:57:10,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 338. [2022-10-16 14:57:10,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 328 states have (on average 1.1585365853658536) internal successors, (380), 334 states have internal predecessors, (380), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:10,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 385 transitions. [2022-10-16 14:57:10,159 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 385 transitions. Word has length 183 [2022-10-16 14:57:10,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:10,159 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 385 transitions. [2022-10-16 14:57:10,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.6923076923076925) internal successors, (48), 14 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:10,160 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 385 transitions. [2022-10-16 14:57:10,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-10-16 14:57:10,162 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:10,163 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:10,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:10,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:10,378 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:10,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:10,379 INFO L85 PathProgramCache]: Analyzing trace with hash 792970303, now seen corresponding path program 1 times [2022-10-16 14:57:10,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:10,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010154274] [2022-10-16 14:57:10,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:10,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 3185 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:10,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:10,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010154274] [2022-10-16 14:57:10,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010154274] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:10,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29159750] [2022-10-16 14:57:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:10,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:10,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:10,770 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:10,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:57:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:10,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:57:10,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3185 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:11,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 3185 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:11,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29159750] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:11,125 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:11,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2022-10-16 14:57:11,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137361099] [2022-10-16 14:57:11,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:11,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:57:11,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:11,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:57:11,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:57:11,127 INFO L87 Difference]: Start difference. First operand 338 states and 385 transitions. Second operand has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:11,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:11,385 INFO L93 Difference]: Finished difference Result 514 states and 610 transitions. [2022-10-16 14:57:11,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 14:57:11,386 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2022-10-16 14:57:11,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:11,389 INFO L225 Difference]: With dead ends: 514 [2022-10-16 14:57:11,389 INFO L226 Difference]: Without dead ends: 513 [2022-10-16 14:57:11,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=270, Invalid=920, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 14:57:11,391 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 109 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:11,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 254 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:11,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-10-16 14:57:11,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 400. [2022-10-16 14:57:11,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 390 states have (on average 1.176923076923077) internal successors, (459), 396 states have internal predecessors, (459), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:11,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 464 transitions. [2022-10-16 14:57:11,412 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 464 transitions. Word has length 189 [2022-10-16 14:57:11,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:11,412 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 464 transitions. [2022-10-16 14:57:11,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.5294117647058822) internal successors, (60), 18 states have internal predecessors, (60), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:11,413 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 464 transitions. [2022-10-16 14:57:11,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-10-16 14:57:11,417 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:11,417 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:11,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:11,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 14:57:11,632 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:11,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:11,633 INFO L85 PathProgramCache]: Analyzing trace with hash 677188666, now seen corresponding path program 1 times [2022-10-16 14:57:11,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:11,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934935797] [2022-10-16 14:57:11,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:11,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:57:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 14:57:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:11,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:11,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934935797] [2022-10-16 14:57:11,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934935797] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:11,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746681918] [2022-10-16 14:57:11,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:11,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:11,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:11,978 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:11,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:57:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:12,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:57:12,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:12,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3176 trivial. 0 not checked. [2022-10-16 14:57:12,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:57:12,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746681918] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:12,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:57:12,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:57:12,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199459345] [2022-10-16 14:57:12,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:12,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:57:12,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:12,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:57:12,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:57:12,216 INFO L87 Difference]: Start difference. First operand 400 states and 464 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:12,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:12,243 INFO L93 Difference]: Finished difference Result 632 states and 758 transitions. [2022-10-16 14:57:12,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:57:12,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 193 [2022-10-16 14:57:12,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:12,246 INFO L225 Difference]: With dead ends: 632 [2022-10-16 14:57:12,246 INFO L226 Difference]: Without dead ends: 408 [2022-10-16 14:57:12,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:57:12,248 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:12,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 69 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:12,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-10-16 14:57:12,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 402. [2022-10-16 14:57:12,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 392 states have (on average 1.1760204081632653) internal successors, (461), 398 states have internal predecessors, (461), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 466 transitions. [2022-10-16 14:57:12,267 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 466 transitions. Word has length 193 [2022-10-16 14:57:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:12,268 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 466 transitions. [2022-10-16 14:57:12,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 466 transitions. [2022-10-16 14:57:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-10-16 14:57:12,271 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:12,271 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:12,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:12,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:12,477 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:12,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:12,478 INFO L85 PathProgramCache]: Analyzing trace with hash -481987769, now seen corresponding path program 1 times [2022-10-16 14:57:12,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:12,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568660781] [2022-10-16 14:57:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:12,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:12,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:57:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:12,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 14:57:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:12,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:12,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568660781] [2022-10-16 14:57:12,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568660781] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:12,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81479128] [2022-10-16 14:57:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:12,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:12,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:12,807 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:12,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:57:13,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:13,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 14:57:13,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:13,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3176 trivial. 0 not checked. [2022-10-16 14:57:13,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:57:13,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81479128] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:13,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:57:13,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 14:57:13,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812138299] [2022-10-16 14:57:13,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:13,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:57:13,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:13,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:57:13,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:57:13,068 INFO L87 Difference]: Start difference. First operand 402 states and 466 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:13,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:13,096 INFO L93 Difference]: Finished difference Result 409 states and 473 transitions. [2022-10-16 14:57:13,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:57:13,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 194 [2022-10-16 14:57:13,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:13,099 INFO L225 Difference]: With dead ends: 409 [2022-10-16 14:57:13,100 INFO L226 Difference]: Without dead ends: 408 [2022-10-16 14:57:13,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:57:13,101 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 6 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:13,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 69 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:13,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2022-10-16 14:57:13,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 403. [2022-10-16 14:57:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 393 states have (on average 1.1755725190839694) internal successors, (462), 399 states have internal predecessors, (462), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 467 transitions. [2022-10-16 14:57:13,124 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 467 transitions. Word has length 194 [2022-10-16 14:57:13,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:13,124 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 467 transitions. [2022-10-16 14:57:13,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:13,125 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 467 transitions. [2022-10-16 14:57:13,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-10-16 14:57:13,128 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:13,128 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:13,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:13,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:13,343 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:13,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:13,344 INFO L85 PathProgramCache]: Analyzing trace with hash 666224105, now seen corresponding path program 1 times [2022-10-16 14:57:13,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:13,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484323732] [2022-10-16 14:57:13,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:13,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:13,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:57:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:13,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-10-16 14:57:13,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:13,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:13,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484323732] [2022-10-16 14:57:13,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484323732] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:13,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842067933] [2022-10-16 14:57:13,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:13,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:13,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:13,592 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:13,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:57:13,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:13,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:57:13,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 3164 trivial. 0 not checked. [2022-10-16 14:57:13,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3176 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:13,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842067933] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:13,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:13,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-10-16 14:57:13,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993834482] [2022-10-16 14:57:13,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:13,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:57:13,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:13,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:57:13,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:57:13,891 INFO L87 Difference]: Start difference. First operand 403 states and 467 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:57:13,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:13,930 INFO L93 Difference]: Finished difference Result 654 states and 784 transitions. [2022-10-16 14:57:13,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:57:13,931 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 196 [2022-10-16 14:57:13,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:13,933 INFO L225 Difference]: With dead ends: 654 [2022-10-16 14:57:13,933 INFO L226 Difference]: Without dead ends: 415 [2022-10-16 14:57:13,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:57:13,935 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 44 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:13,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 185 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:13,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2022-10-16 14:57:13,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2022-10-16 14:57:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 405 states have (on average 1.1604938271604939) internal successors, (470), 411 states have internal predecessors, (470), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 475 transitions. [2022-10-16 14:57:13,955 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 475 transitions. Word has length 196 [2022-10-16 14:57:13,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:13,955 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 475 transitions. [2022-10-16 14:57:13,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 14:57:13,956 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 475 transitions. [2022-10-16 14:57:13,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-10-16 14:57:13,958 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:13,959 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:13,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:14,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:14,173 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:14,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1946259660, now seen corresponding path program 2 times [2022-10-16 14:57:14,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:14,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964082038] [2022-10-16 14:57:14,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:14,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3210 backedges. 5 proven. 40 refuted. 0 times theorem prover too weak. 3165 trivial. 0 not checked. [2022-10-16 14:57:14,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:14,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964082038] [2022-10-16 14:57:14,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964082038] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:14,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511343257] [2022-10-16 14:57:14,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:57:14,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:14,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:14,623 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:14,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:57:14,841 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:57:14,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:14,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:57:14,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:14,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3210 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 3169 trivial. 0 not checked. [2022-10-16 14:57:14,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3210 backedges. 5 proven. 36 refuted. 0 times theorem prover too weak. 3169 trivial. 0 not checked. [2022-10-16 14:57:15,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511343257] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:15,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:15,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 17 [2022-10-16 14:57:15,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644204557] [2022-10-16 14:57:15,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:15,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 14:57:15,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:15,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 14:57:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:57:15,017 INFO L87 Difference]: Start difference. First operand 415 states and 475 transitions. Second operand has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:15,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:15,288 INFO L93 Difference]: Finished difference Result 691 states and 829 transitions. [2022-10-16 14:57:15,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 14:57:15,289 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 197 [2022-10-16 14:57:15,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:15,293 INFO L225 Difference]: With dead ends: 691 [2022-10-16 14:57:15,294 INFO L226 Difference]: Without dead ends: 690 [2022-10-16 14:57:15,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 14:57:15,296 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 84 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:15,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 262 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:15,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2022-10-16 14:57:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 484. [2022-10-16 14:57:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 474 states have (on average 1.1772151898734178) internal successors, (558), 480 states have internal predecessors, (558), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:15,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 563 transitions. [2022-10-16 14:57:15,324 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 563 transitions. Word has length 197 [2022-10-16 14:57:15,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:15,324 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 563 transitions. [2022-10-16 14:57:15,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 18 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 563 transitions. [2022-10-16 14:57:15,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-10-16 14:57:15,327 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:15,328 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 6, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:15,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:15,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 14:57:15,541 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:15,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:15,542 INFO L85 PathProgramCache]: Analyzing trace with hash -207071233, now seen corresponding path program 2 times [2022-10-16 14:57:15,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:15,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646205966] [2022-10-16 14:57:15,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:15,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3236 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 3166 trivial. 0 not checked. [2022-10-16 14:57:16,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:16,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646205966] [2022-10-16 14:57:16,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646205966] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:16,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101081582] [2022-10-16 14:57:16,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:57:16,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:16,022 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:16,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:57:16,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:57:16,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:16,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:57:16,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 3236 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 3166 trivial. 0 not checked. [2022-10-16 14:57:16,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3236 backedges. 5 proven. 65 refuted. 0 times theorem prover too weak. 3166 trivial. 0 not checked. [2022-10-16 14:57:16,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [101081582] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:16,528 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:16,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-10-16 14:57:16,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231450903] [2022-10-16 14:57:16,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:16,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 14:57:16,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:16,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 14:57:16,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:57:16,530 INFO L87 Difference]: Start difference. First operand 484 states and 563 transitions. Second operand has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:16,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:16,918 INFO L93 Difference]: Finished difference Result 817 states and 991 transitions. [2022-10-16 14:57:16,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 14:57:16,919 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 203 [2022-10-16 14:57:16,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:16,923 INFO L225 Difference]: With dead ends: 817 [2022-10-16 14:57:16,923 INFO L226 Difference]: Without dead ends: 816 [2022-10-16 14:57:16,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 14:57:16,925 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:16,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 354 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:16,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2022-10-16 14:57:16,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 584. [2022-10-16 14:57:16,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 574 states have (on average 1.1968641114982579) internal successors, (687), 580 states have internal predecessors, (687), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:16,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 692 transitions. [2022-10-16 14:57:16,960 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 692 transitions. Word has length 203 [2022-10-16 14:57:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:16,960 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 692 transitions. [2022-10-16 14:57:16,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 692 transitions. [2022-10-16 14:57:16,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-10-16 14:57:16,964 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:16,964 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 7, 6, 6, 6, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:16,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-10-16 14:57:17,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 14:57:17,180 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:17,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:17,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1008983969, now seen corresponding path program 3 times [2022-10-16 14:57:17,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:17,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165375213] [2022-10-16 14:57:17,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:17,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:17,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3265 backedges. 10 proven. 73 refuted. 0 times theorem prover too weak. 3182 trivial. 0 not checked. [2022-10-16 14:57:17,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:17,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165375213] [2022-10-16 14:57:17,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165375213] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:17,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707746014] [2022-10-16 14:57:17,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:57:17,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:17,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:17,694 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:17,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 14:57:17,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-10-16 14:57:17,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:17,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:57:17,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:17,978 INFO L134 CoverageAnalysis]: Checked inductivity of 3265 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2022-10-16 14:57:17,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3265 backedges. 10 proven. 69 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2022-10-16 14:57:18,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707746014] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:18,107 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:18,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 19 [2022-10-16 14:57:18,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849813291] [2022-10-16 14:57:18,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:18,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-16 14:57:18,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:18,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-16 14:57:18,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2022-10-16 14:57:18,109 INFO L87 Difference]: Start difference. First operand 584 states and 692 transitions. Second operand has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:18,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:18,402 INFO L93 Difference]: Finished difference Result 1183 states and 1460 transitions. [2022-10-16 14:57:18,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 14:57:18,403 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-10-16 14:57:18,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:18,410 INFO L225 Difference]: With dead ends: 1183 [2022-10-16 14:57:18,410 INFO L226 Difference]: Without dead ends: 1182 [2022-10-16 14:57:18,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=321, Invalid=1085, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:57:18,413 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 91 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:18,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 363 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:18,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2022-10-16 14:57:18,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 637. [2022-10-16 14:57:18,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 627 states have (on average 1.2057416267942584) internal successors, (756), 633 states have internal predecessors, (756), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:18,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 761 transitions. [2022-10-16 14:57:18,460 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 761 transitions. Word has length 210 [2022-10-16 14:57:18,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:18,461 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 761 transitions. [2022-10-16 14:57:18,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.473684210526316) internal successors, (66), 20 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:18,461 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 761 transitions. [2022-10-16 14:57:18,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-10-16 14:57:18,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:18,465 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 7, 6, 6, 6, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:18,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:18,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 14:57:18,681 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:18,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:18,681 INFO L85 PathProgramCache]: Analyzing trace with hash 349500270, now seen corresponding path program 3 times [2022-10-16 14:57:18,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:18,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626996380] [2022-10-16 14:57:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:18,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3269 backedges. 10 proven. 75 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:57:19,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:19,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626996380] [2022-10-16 14:57:19,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626996380] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:19,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029266599] [2022-10-16 14:57:19,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:57:19,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:19,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:19,187 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:19,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 14:57:19,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 14:57:19,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:19,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:57:19,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3269 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 3210 trivial. 0 not checked. [2022-10-16 14:57:19,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:57:19,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029266599] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:19,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:57:19,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2022-10-16 14:57:19,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494827923] [2022-10-16 14:57:19,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:19,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:57:19,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:19,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:57:19,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:57:19,438 INFO L87 Difference]: Start difference. First operand 637 states and 761 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:19,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:19,528 INFO L93 Difference]: Finished difference Result 713 states and 853 transitions. [2022-10-16 14:57:19,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:57:19,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2022-10-16 14:57:19,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:19,532 INFO L225 Difference]: With dead ends: 713 [2022-10-16 14:57:19,532 INFO L226 Difference]: Without dead ends: 712 [2022-10-16 14:57:19,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:57:19,534 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 25 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:19,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 135 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:19,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2022-10-16 14:57:19,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 647. [2022-10-16 14:57:19,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 637 states have (on average 1.205651491365777) internal successors, (768), 643 states have internal predecessors, (768), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:19,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 773 transitions. [2022-10-16 14:57:19,573 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 773 transitions. Word has length 211 [2022-10-16 14:57:19,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:19,574 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 773 transitions. [2022-10-16 14:57:19,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:19,574 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 773 transitions. [2022-10-16 14:57:19,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-10-16 14:57:19,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:19,576 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 7, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:19,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-10-16 14:57:19,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:19,793 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:19,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:19,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1217445528, now seen corresponding path program 4 times [2022-10-16 14:57:19,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:19,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472176555] [2022-10-16 14:57:19,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:19,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:20,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3277 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:57:20,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:20,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472176555] [2022-10-16 14:57:20,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472176555] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:20,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985028198] [2022-10-16 14:57:20,362 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:57:20,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:20,367 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:20,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 14:57:20,632 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:57:20,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:20,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:57:20,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3277 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:57:20,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:20,950 INFO L134 CoverageAnalysis]: Checked inductivity of 3277 backedges. 5 proven. 100 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:57:20,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985028198] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:20,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:20,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 25 [2022-10-16 14:57:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781636542] [2022-10-16 14:57:20,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:20,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:57:20,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:20,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:57:20,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=490, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:57:20,953 INFO L87 Difference]: Start difference. First operand 647 states and 773 transitions. Second operand has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:21,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:21,384 INFO L93 Difference]: Finished difference Result 1216 states and 1492 transitions. [2022-10-16 14:57:21,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-16 14:57:21,384 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 211 [2022-10-16 14:57:21,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:21,390 INFO L225 Difference]: With dead ends: 1216 [2022-10-16 14:57:21,390 INFO L226 Difference]: Without dead ends: 1215 [2022-10-16 14:57:21,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=458, Invalid=1522, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 14:57:21,392 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 136 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:21,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 447 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:21,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215 states. [2022-10-16 14:57:21,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215 to 725. [2022-10-16 14:57:21,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 715 states have (on average 1.2167832167832169) internal successors, (870), 721 states have internal predecessors, (870), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:21,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 875 transitions. [2022-10-16 14:57:21,450 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 875 transitions. Word has length 211 [2022-10-16 14:57:21,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:21,451 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 875 transitions. [2022-10-16 14:57:21,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.36) internal successors, (84), 26 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:21,452 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 875 transitions. [2022-10-16 14:57:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-10-16 14:57:21,453 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:21,454 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 8, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:21,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2022-10-16 14:57:21,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:21,668 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:21,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:21,669 INFO L85 PathProgramCache]: Analyzing trace with hash 443257279, now seen corresponding path program 4 times [2022-10-16 14:57:21,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:21,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219731962] [2022-10-16 14:57:21,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:21,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:22,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3315 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 3160 trivial. 0 not checked. [2022-10-16 14:57:22,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:22,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219731962] [2022-10-16 14:57:22,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219731962] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:22,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653627770] [2022-10-16 14:57:22,301 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:57:22,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:22,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:22,302 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:22,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-10-16 14:57:22,559 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:57:22,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:22,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-16 14:57:22,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:22,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3315 backedges. 2 proven. 151 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:22,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:22,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3315 backedges. 2 proven. 151 refuted. 0 times theorem prover too weak. 3162 trivial. 0 not checked. [2022-10-16 14:57:22,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653627770] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:22,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:22,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 33 [2022-10-16 14:57:22,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970187266] [2022-10-16 14:57:22,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:22,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:57:22,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:22,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:57:22,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:57:22,958 INFO L87 Difference]: Start difference. First operand 725 states and 875 transitions. Second operand has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:23,584 INFO L93 Difference]: Finished difference Result 1780 states and 2211 transitions. [2022-10-16 14:57:23,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-10-16 14:57:23,585 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2022-10-16 14:57:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:23,593 INFO L225 Difference]: With dead ends: 1780 [2022-10-16 14:57:23,593 INFO L226 Difference]: Without dead ends: 1779 [2022-10-16 14:57:23,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=832, Invalid=2708, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:57:23,596 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 202 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:23,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 526 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:57:23,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2022-10-16 14:57:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1399. [2022-10-16 14:57:23,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1399 states, 1389 states have (on average 1.2491000719942404) internal successors, (1735), 1395 states have internal predecessors, (1735), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:23,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1399 states to 1399 states and 1740 transitions. [2022-10-16 14:57:23,713 INFO L78 Accepts]: Start accepts. Automaton has 1399 states and 1740 transitions. Word has length 217 [2022-10-16 14:57:23,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:23,714 INFO L495 AbstractCegarLoop]: Abstraction has 1399 states and 1740 transitions. [2022-10-16 14:57:23,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.515151515151515) internal successors, (116), 34 states have internal predecessors, (116), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:23,715 INFO L276 IsEmpty]: Start isEmpty. Operand 1399 states and 1740 transitions. [2022-10-16 14:57:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-10-16 14:57:23,718 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:23,718 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:23,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:23,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-10-16 14:57:23,931 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:23,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:23,933 INFO L85 PathProgramCache]: Analyzing trace with hash -547268823, now seen corresponding path program 2 times [2022-10-16 14:57:23,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:23,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574753101] [2022-10-16 14:57:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:23,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:24,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:57:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:24,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 14:57:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3282 trivial. 0 not checked. [2022-10-16 14:57:24,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:24,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574753101] [2022-10-16 14:57:24,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574753101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:24,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:57:24,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:57:24,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89571192] [2022-10-16 14:57:24,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:24,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:57:24,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:24,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:57:24,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:57:24,149 INFO L87 Difference]: Start difference. First operand 1399 states and 1740 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:24,279 INFO L93 Difference]: Finished difference Result 1404 states and 1745 transitions. [2022-10-16 14:57:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:57:24,279 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 224 [2022-10-16 14:57:24,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:24,286 INFO L225 Difference]: With dead ends: 1404 [2022-10-16 14:57:24,286 INFO L226 Difference]: Without dead ends: 1402 [2022-10-16 14:57:24,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:57:24,287 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:24,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 101 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:24,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2022-10-16 14:57:24,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 1402. [2022-10-16 14:57:24,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1392 states have (on average 1.2485632183908046) internal successors, (1738), 1398 states have internal predecessors, (1738), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1743 transitions. [2022-10-16 14:57:24,397 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1743 transitions. Word has length 224 [2022-10-16 14:57:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:24,397 INFO L495 AbstractCegarLoop]: Abstraction has 1402 states and 1743 transitions. [2022-10-16 14:57:24,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:24,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1743 transitions. [2022-10-16 14:57:24,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 14:57:24,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:24,401 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 9, 8, 8, 8, 6, 6, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:24,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-10-16 14:57:24,402 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:24,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:24,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1672904024, now seen corresponding path program 5 times [2022-10-16 14:57:24,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:24,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90379991] [2022-10-16 14:57:24,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:24,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 10 proven. 153 refuted. 0 times theorem prover too weak. 3189 trivial. 0 not checked. [2022-10-16 14:57:25,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:25,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90379991] [2022-10-16 14:57:25,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90379991] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:25,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549825016] [2022-10-16 14:57:25,026 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:57:25,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:25,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:25,027 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:25,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-10-16 14:57:39,756 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 41 check-sat command(s) [2022-10-16 14:57:39,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:39,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:57:39,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 3193 trivial. 0 not checked. [2022-10-16 14:57:39,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:40,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3352 backedges. 12 proven. 147 refuted. 0 times theorem prover too weak. 3193 trivial. 0 not checked. [2022-10-16 14:57:40,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549825016] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:40,095 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:40,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 25 [2022-10-16 14:57:40,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839442218] [2022-10-16 14:57:40,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:40,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:57:40,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:40,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:57:40,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=517, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:57:40,098 INFO L87 Difference]: Start difference. First operand 1402 states and 1743 transitions. Second operand has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:40,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:40,658 INFO L93 Difference]: Finished difference Result 3948 states and 4994 transitions. [2022-10-16 14:57:40,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-16 14:57:40,659 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2022-10-16 14:57:40,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:40,677 INFO L225 Difference]: With dead ends: 3948 [2022-10-16 14:57:40,677 INFO L226 Difference]: Without dead ends: 3947 [2022-10-16 14:57:40,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 14:57:40,680 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 144 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:40,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 348 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:40,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3947 states. [2022-10-16 14:57:40,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3947 to 2682. [2022-10-16 14:57:40,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2672 states have (on average 1.2657185628742516) internal successors, (3382), 2678 states have internal predecessors, (3382), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:40,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3387 transitions. [2022-10-16 14:57:40,961 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3387 transitions. Word has length 225 [2022-10-16 14:57:40,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:40,962 INFO L495 AbstractCegarLoop]: Abstraction has 2682 states and 3387 transitions. [2022-10-16 14:57:40,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.52) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:40,963 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3387 transitions. [2022-10-16 14:57:40,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-10-16 14:57:40,968 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:40,968 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 9, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:41,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:41,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-10-16 14:57:41,183 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:41,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:41,184 INFO L85 PathProgramCache]: Analyzing trace with hash 2015229108, now seen corresponding path program 6 times [2022-10-16 14:57:41,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:41,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989326235] [2022-10-16 14:57:41,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:41,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:41,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3372 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:57:41,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:41,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989326235] [2022-10-16 14:57:41,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989326235] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:41,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732890367] [2022-10-16 14:57:41,860 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:57:41,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:41,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:41,861 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:41,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-10-16 14:57:42,978 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2022-10-16 14:57:42,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:42,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 14:57:42,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3372 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:57:43,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:43,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3372 backedges. 5 proven. 195 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:57:43,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732890367] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:43,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:43,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2022-10-16 14:57:43,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671382700] [2022-10-16 14:57:43,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:43,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 14:57:43,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:43,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 14:57:43,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 14:57:43,415 INFO L87 Difference]: Start difference. First operand 2682 states and 3387 transitions. Second operand has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:44,267 INFO L93 Difference]: Finished difference Result 5769 states and 7268 transitions. [2022-10-16 14:57:44,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:57:44,268 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2022-10-16 14:57:44,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:44,293 INFO L225 Difference]: With dead ends: 5769 [2022-10-16 14:57:44,294 INFO L226 Difference]: Without dead ends: 5768 [2022-10-16 14:57:44,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=814, Invalid=2726, Unknown=0, NotChecked=0, Total=3540 [2022-10-16 14:57:44,297 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 213 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:44,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 418 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:44,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5768 states. [2022-10-16 14:57:44,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5768 to 3889. [2022-10-16 14:57:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3889 states, 3879 states have (on average 1.2722351121423048) internal successors, (4935), 3885 states have internal predecessors, (4935), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3889 states to 3889 states and 4940 transitions. [2022-10-16 14:57:44,686 INFO L78 Accepts]: Start accepts. Automaton has 3889 states and 4940 transitions. Word has length 225 [2022-10-16 14:57:44,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:44,687 INFO L495 AbstractCegarLoop]: Abstraction has 3889 states and 4940 transitions. [2022-10-16 14:57:44,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.393939393939394) internal successors, (112), 34 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:44,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3889 states and 4940 transitions. [2022-10-16 14:57:44,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-10-16 14:57:44,692 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:44,693 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:44,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-10-16 14:57:44,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:44,907 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:44,908 INFO L85 PathProgramCache]: Analyzing trace with hash 10419808, now seen corresponding path program 1 times [2022-10-16 14:57:44,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:44,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102260560] [2022-10-16 14:57:44,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:44,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:57:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 14:57:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3284 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3283 trivial. 0 not checked. [2022-10-16 14:57:45,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:45,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102260560] [2022-10-16 14:57:45,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102260560] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:57:45,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:57:45,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:57:45,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400689371] [2022-10-16 14:57:45,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:57:45,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:57:45,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:45,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:57:45,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:57:45,059 INFO L87 Difference]: Start difference. First operand 3889 states and 4940 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:45,323 INFO L93 Difference]: Finished difference Result 3889 states and 4940 transitions. [2022-10-16 14:57:45,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:57:45,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 227 [2022-10-16 14:57:45,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:45,341 INFO L225 Difference]: With dead ends: 3889 [2022-10-16 14:57:45,342 INFO L226 Difference]: Without dead ends: 3888 [2022-10-16 14:57:45,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:57:45,345 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:45,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 65 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:57:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2022-10-16 14:57:45,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3888. [2022-10-16 14:57:45,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 3879 states have (on average 1.2719773137406547) internal successors, (4934), 3884 states have internal predecessors, (4934), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:45,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 4939 transitions. [2022-10-16 14:57:45,685 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 4939 transitions. Word has length 227 [2022-10-16 14:57:45,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:45,686 INFO L495 AbstractCegarLoop]: Abstraction has 3888 states and 4939 transitions. [2022-10-16 14:57:45,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 14:57:45,686 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 4939 transitions. [2022-10-16 14:57:45,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-10-16 14:57:45,691 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:45,691 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:45,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-10-16 14:57:45,692 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:45,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:45,692 INFO L85 PathProgramCache]: Analyzing trace with hash 323014113, now seen corresponding path program 1 times [2022-10-16 14:57:45,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:45,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888255423] [2022-10-16 14:57:45,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:45,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:45,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-10-16 14:57:45,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-10-16 14:57:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3285 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3282 trivial. 0 not checked. [2022-10-16 14:57:45,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:45,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888255423] [2022-10-16 14:57:45,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888255423] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:45,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325744155] [2022-10-16 14:57:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:45,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:45,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:45,937 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:45,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-10-16 14:57:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:46,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 14:57:46,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3285 backedges. 71 proven. 24 refuted. 0 times theorem prover too weak. 3190 trivial. 0 not checked. [2022-10-16 14:57:46,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:57:46,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3285 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 3188 trivial. 0 not checked. [2022-10-16 14:57:46,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325744155] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:57:46,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:57:46,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2022-10-16 14:57:46,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155192719] [2022-10-16 14:57:46,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:57:46,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 14:57:46,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:57:46,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 14:57:46,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:57:46,457 INFO L87 Difference]: Start difference. First operand 3888 states and 4939 transitions. Second operand has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 14:57:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:46,845 INFO L93 Difference]: Finished difference Result 8270 states and 10524 transitions. [2022-10-16 14:57:46,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 14:57:46,845 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 228 [2022-10-16 14:57:46,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:46,864 INFO L225 Difference]: With dead ends: 8270 [2022-10-16 14:57:46,864 INFO L226 Difference]: Without dead ends: 4546 [2022-10-16 14:57:46,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:57:46,878 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 150 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:46,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 240 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:57:46,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2022-10-16 14:57:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4541. [2022-10-16 14:57:47,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4541 states, 4532 states have (on average 1.2424977934686672) internal successors, (5631), 4537 states have internal predecessors, (5631), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:57:47,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4541 states to 4541 states and 5636 transitions. [2022-10-16 14:57:47,282 INFO L78 Accepts]: Start accepts. Automaton has 4541 states and 5636 transitions. Word has length 228 [2022-10-16 14:57:47,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:47,283 INFO L495 AbstractCegarLoop]: Abstraction has 4541 states and 5636 transitions. [2022-10-16 14:57:47,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.0) internal successors, (95), 19 states have internal predecessors, (95), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 14:57:47,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4541 states and 5636 transitions. [2022-10-16 14:57:47,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-10-16 14:57:47,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:47,290 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 10, 9, 9, 9, 8, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:47,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:47,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:47,505 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:57:47,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash 833026477, now seen corresponding path program 5 times [2022-10-16 14:57:47,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:47,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353806998] [2022-10-16 14:57:47,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:47,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:48,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3409 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:57:48,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:48,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353806998] [2022-10-16 14:57:48,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353806998] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:48,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90660320] [2022-10-16 14:57:48,237 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:57:48,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:48,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:48,238 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:48,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-10-16 14:58:04,960 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 41 check-sat command(s) [2022-10-16 14:58:04,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:58:04,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 14:58:04,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3409 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:05,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:05,351 INFO L134 CoverageAnalysis]: Checked inductivity of 3409 backedges. 10 proven. 215 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:05,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90660320] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:05,352 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:05,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-10-16 14:58:05,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576482938] [2022-10-16 14:58:05,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:05,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-16 14:58:05,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:05,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-16 14:58:05,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2022-10-16 14:58:05,355 INFO L87 Difference]: Start difference. First operand 4541 states and 5636 transitions. Second operand has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:06,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:06,415 INFO L93 Difference]: Finished difference Result 10523 states and 13188 transitions. [2022-10-16 14:58:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:58:06,415 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2022-10-16 14:58:06,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:06,441 INFO L225 Difference]: With dead ends: 10523 [2022-10-16 14:58:06,441 INFO L226 Difference]: Without dead ends: 10522 [2022-10-16 14:58:06,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=733, Invalid=2689, Unknown=0, NotChecked=0, Total=3422 [2022-10-16 14:58:06,449 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 172 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:06,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 554 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:58:06,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10522 states. [2022-10-16 14:58:07,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10522 to 7828. [2022-10-16 14:58:07,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7828 states, 7819 states have (on average 1.2602634608006138) internal successors, (9854), 7824 states have internal predecessors, (9854), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:07,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7828 states to 7828 states and 9859 transitions. [2022-10-16 14:58:07,211 INFO L78 Accepts]: Start accepts. Automaton has 7828 states and 9859 transitions. Word has length 231 [2022-10-16 14:58:07,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:07,212 INFO L495 AbstractCegarLoop]: Abstraction has 7828 states and 9859 transitions. [2022-10-16 14:58:07,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.2903225806451615) internal successors, (102), 32 states have internal predecessors, (102), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand 7828 states and 9859 transitions. [2022-10-16 14:58:07,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-10-16 14:58:07,224 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:07,224 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 11, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:07,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-10-16 14:58:07,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-10-16 14:58:07,439 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:07,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:07,440 INFO L85 PathProgramCache]: Analyzing trace with hash 817224680, now seen corresponding path program 7 times [2022-10-16 14:58:07,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:07,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388736470] [2022-10-16 14:58:07,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:07,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3495 backedges. 5 proven. 318 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:58:08,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388736470] [2022-10-16 14:58:08,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388736470] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:08,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699083016] [2022-10-16 14:58:08,178 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:58:08,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:08,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:08,179 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:08,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-10-16 14:58:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:08,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:58:08,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3495 backedges. 5 proven. 318 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:58:08,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:09,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3495 backedges. 5 proven. 318 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:58:09,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699083016] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:09,166 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:09,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 41 [2022-10-16 14:58:09,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967299897] [2022-10-16 14:58:09,167 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:09,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 14:58:09,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 14:58:09,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=1298, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:58:09,169 INFO L87 Difference]: Start difference. First operand 7828 states and 9859 transitions. Second operand has 42 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 42 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:10,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:10,635 INFO L93 Difference]: Finished difference Result 14556 states and 18263 transitions. [2022-10-16 14:58:10,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 14:58:10,636 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 42 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 239 [2022-10-16 14:58:10,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:10,670 INFO L225 Difference]: With dead ends: 14556 [2022-10-16 14:58:10,670 INFO L226 Difference]: Without dead ends: 14555 [2022-10-16 14:58:10,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 459 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1345 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1274, Invalid=4276, Unknown=0, NotChecked=0, Total=5550 [2022-10-16 14:58:10,680 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 270 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:10,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 479 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14555 states. [2022-10-16 14:58:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14555 to 8128. [2022-10-16 14:58:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8128 states, 8119 states have (on average 1.2611159009730262) internal successors, (10239), 8124 states have internal predecessors, (10239), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:11,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 10244 transitions. [2022-10-16 14:58:11,435 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 10244 transitions. Word has length 239 [2022-10-16 14:58:11,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:11,436 INFO L495 AbstractCegarLoop]: Abstraction has 8128 states and 10244 transitions. [2022-10-16 14:58:11,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 42 states have internal predecessors, (140), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:11,437 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 10244 transitions. [2022-10-16 14:58:11,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-10-16 14:58:11,449 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:11,450 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 12, 11, 11, 11, 10, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:11,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-10-16 14:58:11,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-10-16 14:58:11,667 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:11,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:11,668 INFO L85 PathProgramCache]: Analyzing trace with hash 2142464825, now seen corresponding path program 6 times [2022-10-16 14:58:11,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:11,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749335890] [2022-10-16 14:58:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:11,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:12,432 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 10 proven. 353 refuted. 0 times theorem prover too weak. 3177 trivial. 0 not checked. [2022-10-16 14:58:12,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:12,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749335890] [2022-10-16 14:58:12,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749335890] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:12,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183138321] [2022-10-16 14:58:12,433 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:58:12,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:12,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:12,434 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:12,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-16 14:58:13,482 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 23 check-sat command(s) [2022-10-16 14:58:13,482 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:58:13,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:58:13,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:13,591 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 10 proven. 349 refuted. 0 times theorem prover too weak. 3181 trivial. 0 not checked. [2022-10-16 14:58:13,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:14,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3540 backedges. 10 proven. 349 refuted. 0 times theorem prover too weak. 3181 trivial. 0 not checked. [2022-10-16 14:58:14,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183138321] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:14,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:14,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19, 19] total 39 [2022-10-16 14:58:14,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311955123] [2022-10-16 14:58:14,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:14,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:58:14,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:14,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:58:14,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=1205, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:58:14,033 INFO L87 Difference]: Start difference. First operand 8128 states and 10244 transitions. Second operand has 40 states, 39 states have (on average 3.4871794871794872) internal successors, (136), 40 states have internal predecessors, (136), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:15,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:15,725 INFO L93 Difference]: Finished difference Result 16873 states and 21244 transitions. [2022-10-16 14:58:15,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-16 14:58:15,726 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.4871794871794872) internal successors, (136), 40 states have internal predecessors, (136), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2022-10-16 14:58:15,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:15,763 INFO L225 Difference]: With dead ends: 16873 [2022-10-16 14:58:15,763 INFO L226 Difference]: Without dead ends: 16872 [2022-10-16 14:58:15,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1278 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1204, Invalid=4198, Unknown=0, NotChecked=0, Total=5402 [2022-10-16 14:58:15,773 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 235 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:15,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 582 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:15,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16872 states. [2022-10-16 14:58:16,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16872 to 9816. [2022-10-16 14:58:16,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9816 states, 9807 states have (on average 1.266034465177934) internal successors, (12416), 9812 states have internal predecessors, (12416), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9816 states to 9816 states and 12421 transitions. [2022-10-16 14:58:17,039 INFO L78 Accepts]: Start accepts. Automaton has 9816 states and 12421 transitions. Word has length 245 [2022-10-16 14:58:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:17,040 INFO L495 AbstractCegarLoop]: Abstraction has 9816 states and 12421 transitions. [2022-10-16 14:58:17,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.4871794871794872) internal successors, (136), 40 states have internal predecessors, (136), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 9816 states and 12421 transitions. [2022-10-16 14:58:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-10-16 14:58:17,052 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:17,052 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 12, 11, 11, 11, 10, 10, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:17,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-10-16 14:58:17,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-10-16 14:58:17,268 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:17,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:17,269 INFO L85 PathProgramCache]: Analyzing trace with hash -795044274, now seen corresponding path program 8 times [2022-10-16 14:58:17,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:17,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457743343] [2022-10-16 14:58:17,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:17,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:18,098 INFO L134 CoverageAnalysis]: Checked inductivity of 3549 backedges. 5 proven. 372 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:58:18,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:18,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457743343] [2022-10-16 14:58:18,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457743343] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:18,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033052594] [2022-10-16 14:58:18,099 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:58:18,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:18,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:18,100 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:18,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-10-16 14:58:18,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:58:18,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:58:18,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:58:18,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3549 backedges. 7 proven. 366 refuted. 0 times theorem prover too weak. 3176 trivial. 0 not checked. [2022-10-16 14:58:18,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:19,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3549 backedges. 7 proven. 366 refuted. 0 times theorem prover too weak. 3176 trivial. 0 not checked. [2022-10-16 14:58:19,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033052594] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:19,153 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:19,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 43 [2022-10-16 14:58:19,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630504335] [2022-10-16 14:58:19,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:19,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 14:58:19,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:19,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 14:58:19,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1474, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 14:58:19,156 INFO L87 Difference]: Start difference. First operand 9816 states and 12421 transitions. Second operand has 44 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 44 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:21,370 INFO L93 Difference]: Finished difference Result 23344 states and 29443 transitions. [2022-10-16 14:58:21,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-16 14:58:21,371 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 44 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-10-16 14:58:21,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:21,412 INFO L225 Difference]: With dead ends: 23344 [2022-10-16 14:58:21,412 INFO L226 Difference]: Without dead ends: 23343 [2022-10-16 14:58:21,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1369 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1348, Invalid=4658, Unknown=0, NotChecked=0, Total=6006 [2022-10-16 14:58:21,423 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 282 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:21,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 521 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:21,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23343 states. [2022-10-16 14:58:22,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23343 to 16028. [2022-10-16 14:58:22,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16028 states, 16019 states have (on average 1.274174417878769) internal successors, (20411), 16024 states have internal predecessors, (20411), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:22,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16028 states to 16028 states and 20416 transitions. [2022-10-16 14:58:22,828 INFO L78 Accepts]: Start accepts. Automaton has 16028 states and 20416 transitions. Word has length 246 [2022-10-16 14:58:22,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:22,828 INFO L495 AbstractCegarLoop]: Abstraction has 16028 states and 20416 transitions. [2022-10-16 14:58:22,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 3.5348837209302326) internal successors, (152), 44 states have internal predecessors, (152), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:22,828 INFO L276 IsEmpty]: Start isEmpty. Operand 16028 states and 20416 transitions. [2022-10-16 14:58:22,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-10-16 14:58:22,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:22,848 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 12, 11, 11, 11, 10, 10, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:22,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-10-16 14:58:23,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-10-16 14:58:23,062 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash 2134194562, now seen corresponding path program 9 times [2022-10-16 14:58:23,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:23,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835060765] [2022-10-16 14:58:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:23,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:24,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3549 backedges. 10 proven. 355 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:24,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:24,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835060765] [2022-10-16 14:58:24,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835060765] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:24,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545629024] [2022-10-16 14:58:24,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:58:24,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:24,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:24,070 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:24,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-10-16 14:58:24,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 14:58:24,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:58:24,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:58:24,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3549 backedges. 10 proven. 355 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:24,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3549 backedges. 10 proven. 355 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:25,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545629024] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:25,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:25,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2022-10-16 14:58:25,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579832209] [2022-10-16 14:58:25,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:25,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:58:25,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:25,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:58:25,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=1205, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:58:25,079 INFO L87 Difference]: Start difference. First operand 16028 states and 20416 transitions. Second operand has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:29,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:29,079 INFO L93 Difference]: Finished difference Result 48167 states and 60933 transitions. [2022-10-16 14:58:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-10-16 14:58:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-10-16 14:58:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:29,181 INFO L225 Difference]: With dead ends: 48167 [2022-10-16 14:58:29,181 INFO L226 Difference]: Without dead ends: 48166 [2022-10-16 14:58:29,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1448 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1185, Invalid=4365, Unknown=0, NotChecked=0, Total=5550 [2022-10-16 14:58:29,199 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 246 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:29,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 488 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:29,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48166 states. [2022-10-16 14:58:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48166 to 30107. [2022-10-16 14:58:32,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30107 states, 30098 states have (on average 1.2791215363147053) internal successors, (38499), 30103 states have internal predecessors, (38499), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30107 states to 30107 states and 38504 transitions. [2022-10-16 14:58:32,120 INFO L78 Accepts]: Start accepts. Automaton has 30107 states and 38504 transitions. Word has length 246 [2022-10-16 14:58:32,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:32,121 INFO L495 AbstractCegarLoop]: Abstraction has 30107 states and 38504 transitions. [2022-10-16 14:58:32,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 40 states have internal predecessors, (132), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 30107 states and 38504 transitions. [2022-10-16 14:58:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-10-16 14:58:32,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:32,142 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 13, 12, 12, 12, 10, 10, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:32,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-10-16 14:58:32,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2022-10-16 14:58:32,343 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:32,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:32,344 INFO L85 PathProgramCache]: Analyzing trace with hash -47316620, now seen corresponding path program 10 times [2022-10-16 14:58:32,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:32,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956274868] [2022-10-16 14:58:32,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:32,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:33,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3610 backedges. 10 proven. 416 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:33,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:33,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956274868] [2022-10-16 14:58:33,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956274868] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:33,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729364373] [2022-10-16 14:58:33,502 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:58:33,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:33,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:33,504 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:33,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-10-16 14:58:33,892 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:58:33,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:58:33,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 27 conjunts are in the unsatisfiable core [2022-10-16 14:58:33,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3610 backedges. 12 proven. 412 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2022-10-16 14:58:34,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:34,584 INFO L134 CoverageAnalysis]: Checked inductivity of 3610 backedges. 12 proven. 412 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2022-10-16 14:58:34,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729364373] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:34,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:34,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 41 [2022-10-16 14:58:34,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672468662] [2022-10-16 14:58:34,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:34,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-16 14:58:34,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:34,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-16 14:58:34,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1365, Unknown=0, NotChecked=0, Total=1722 [2022-10-16 14:58:34,588 INFO L87 Difference]: Start difference. First operand 30107 states and 38504 transitions. Second operand has 42 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 42 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:41,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:41,530 INFO L93 Difference]: Finished difference Result 88930 states and 112840 transitions. [2022-10-16 14:58:41,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-10-16 14:58:41,530 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 42 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2022-10-16 14:58:41,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:41,667 INFO L225 Difference]: With dead ends: 88930 [2022-10-16 14:58:41,668 INFO L226 Difference]: Without dead ends: 88929 [2022-10-16 14:58:41,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1504 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1330, Invalid=4990, Unknown=0, NotChecked=0, Total=6320 [2022-10-16 14:58:41,696 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 335 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:41,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 422 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88929 states. [2022-10-16 14:58:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88929 to 52577. [2022-10-16 14:58:46,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52577 states, 52568 states have (on average 1.2818064221579668) internal successors, (67382), 52573 states have internal predecessors, (67382), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:58:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52577 states to 52577 states and 67387 transitions. [2022-10-16 14:58:47,142 INFO L78 Accepts]: Start accepts. Automaton has 52577 states and 67387 transitions. Word has length 253 [2022-10-16 14:58:47,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:58:47,142 INFO L495 AbstractCegarLoop]: Abstraction has 52577 states and 67387 transitions. [2022-10-16 14:58:47,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.5121951219512195) internal successors, (144), 42 states have internal predecessors, (144), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 52577 states and 67387 transitions. [2022-10-16 14:58:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 14:58:47,172 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:58:47,172 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 15, 14, 14, 14, 13, 12, 12, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:58:47,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2022-10-16 14:58:47,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:47,378 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:58:47,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:58:47,379 INFO L85 PathProgramCache]: Analyzing trace with hash -143571053, now seen corresponding path program 7 times [2022-10-16 14:58:47,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:58:47,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016454511] [2022-10-16 14:58:47,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:58:47,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:58:47,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3789 backedges. 10 proven. 595 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:48,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:58:48,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016454511] [2022-10-16 14:58:48,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016454511] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:58:48,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822840274] [2022-10-16 14:58:48,500 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 14:58:48,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:58:48,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:58:48,502 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:58:48,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-10-16 14:58:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:58:48,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 14:58:48,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:58:49,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3789 backedges. 10 proven. 595 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:49,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:58:49,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3789 backedges. 10 proven. 595 refuted. 0 times theorem prover too weak. 3184 trivial. 0 not checked. [2022-10-16 14:58:49,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822840274] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:58:49,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:58:49,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 51 [2022-10-16 14:58:49,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355183957] [2022-10-16 14:58:49,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:58:49,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-10-16 14:58:49,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:58:49,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-10-16 14:58:49,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=613, Invalid=2039, Unknown=0, NotChecked=0, Total=2652 [2022-10-16 14:58:49,749 INFO L87 Difference]: Start difference. First operand 52577 states and 67387 transitions. Second operand has 52 states, 51 states have (on average 3.372549019607843) internal successors, (172), 52 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:58:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:58:58,830 INFO L93 Difference]: Finished difference Result 106823 states and 135756 transitions. [2022-10-16 14:58:58,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-10-16 14:58:58,831 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 3.372549019607843) internal successors, (172), 52 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2022-10-16 14:58:58,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:58:59,017 INFO L225 Difference]: With dead ends: 106823 [2022-10-16 14:58:59,017 INFO L226 Difference]: Without dead ends: 106822 [2022-10-16 14:58:59,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 511 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2552 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2067, Invalid=7635, Unknown=0, NotChecked=0, Total=9702 [2022-10-16 14:58:59,045 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 313 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:58:59,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 529 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:58:59,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106822 states. [2022-10-16 14:59:05,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106822 to 59070. [2022-10-16 14:59:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59070 states, 59061 states have (on average 1.2823521443930852) internal successors, (75737), 59066 states have internal predecessors, (75737), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:59:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59070 states to 59070 states and 75742 transitions. [2022-10-16 14:59:05,676 INFO L78 Accepts]: Start accepts. Automaton has 59070 states and 75742 transitions. Word has length 266 [2022-10-16 14:59:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:59:05,677 INFO L495 AbstractCegarLoop]: Abstraction has 59070 states and 75742 transitions. [2022-10-16 14:59:05,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 3.372549019607843) internal successors, (172), 52 states have internal predecessors, (172), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:59:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 59070 states and 75742 transitions. [2022-10-16 14:59:05,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-10-16 14:59:05,889 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:59:05,889 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 15, 14, 14, 14, 11, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 14:59:05,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2022-10-16 14:59:06,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-10-16 14:59:06,090 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:59:06,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:59:06,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2116323999, now seen corresponding path program 8 times [2022-10-16 14:59:06,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:59:06,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463755072] [2022-10-16 14:59:06,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:59:06,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:59:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:59:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3755 backedges. 20 proven. 512 refuted. 0 times theorem prover too weak. 3223 trivial. 0 not checked. [2022-10-16 14:59:07,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:59:07,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463755072] [2022-10-16 14:59:07,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463755072] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:59:07,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719487316] [2022-10-16 14:59:07,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:59:07,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:59:07,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:59:07,129 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:59:07,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-10-16 14:59:07,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:59:07,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:59:07,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 14:59:07,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:59:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 3755 backedges. 20 proven. 512 refuted. 0 times theorem prover too weak. 3223 trivial. 0 not checked. [2022-10-16 14:59:07,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:59:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3755 backedges. 20 proven. 512 refuted. 0 times theorem prover too weak. 3223 trivial. 0 not checked. [2022-10-16 14:59:08,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719487316] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:59:08,090 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:59:08,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 39 [2022-10-16 14:59:08,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124619989] [2022-10-16 14:59:08,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:59:08,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-10-16 14:59:08,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:59:08,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-10-16 14:59:08,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=315, Invalid=1245, Unknown=0, NotChecked=0, Total=1560 [2022-10-16 14:59:08,091 INFO L87 Difference]: Start difference. First operand 59070 states and 75742 transitions. Second operand has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:59:24,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:59:24,307 INFO L93 Difference]: Finished difference Result 174924 states and 223257 transitions. [2022-10-16 14:59:24,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-10-16 14:59:24,308 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2022-10-16 14:59:24,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:59:24,647 INFO L225 Difference]: With dead ends: 174924 [2022-10-16 14:59:24,647 INFO L226 Difference]: Without dead ends: 174923 [2022-10-16 14:59:24,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 523 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1084, Invalid=4172, Unknown=0, NotChecked=0, Total=5256 [2022-10-16 14:59:24,686 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 288 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:59:24,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 653 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:59:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174923 states. [2022-10-16 14:59:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174923 to 74854. [2022-10-16 14:59:36,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74854 states, 74845 states have (on average 1.2827576992451066) internal successors, (96008), 74850 states have internal predecessors, (96008), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:59:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74854 states to 74854 states and 96013 transitions. [2022-10-16 14:59:36,536 INFO L78 Accepts]: Start accepts. Automaton has 74854 states and 96013 transitions. Word has length 266 [2022-10-16 14:59:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:59:36,537 INFO L495 AbstractCegarLoop]: Abstraction has 74854 states and 96013 transitions. [2022-10-16 14:59:36,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 3.282051282051282) internal successors, (128), 40 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:59:36,537 INFO L276 IsEmpty]: Start isEmpty. Operand 74854 states and 96013 transitions. [2022-10-16 14:59:36,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-10-16 14:59:36,820 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:59:36,820 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 17, 16, 16, 16, 15, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:59:36,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-10-16 14:59:37,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:59:37,039 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting sepErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:59:37,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:59:37,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1257804129, now seen corresponding path program 9 times [2022-10-16 14:59:37,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:59:37,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930354318] [2022-10-16 14:59:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:59:37,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:59:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:59:38,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 5 proven. 813 refuted. 0 times theorem prover too weak. 3172 trivial. 0 not checked. [2022-10-16 14:59:38,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:59:38,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930354318] [2022-10-16 14:59:38,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930354318] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:59:38,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974882272] [2022-10-16 14:59:38,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:59:38,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:59:38,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:59:38,596 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:59:38,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-10-16 14:59:39,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2022-10-16 14:59:39,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:59:39,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 14:59:39,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:59:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 7 proven. 809 refuted. 0 times theorem prover too weak. 3174 trivial. 0 not checked. [2022-10-16 14:59:39,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:59:40,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3990 backedges. 7 proven. 809 refuted. 0 times theorem prover too weak. 3174 trivial. 0 not checked. [2022-10-16 14:59:40,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974882272] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:59:40,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:59:40,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 63 [2022-10-16 14:59:40,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369969283] [2022-10-16 14:59:40,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:59:40,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-16 14:59:40,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:59:40,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-16 14:59:40,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=918, Invalid=3114, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 14:59:40,276 INFO L87 Difference]: Start difference. First operand 74854 states and 96013 transitions. Second operand has 64 states, 63 states have (on average 3.492063492063492) internal successors, (220), 64 states have internal predecessors, (220), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:00:06,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 15:00:06,617 INFO L93 Difference]: Finished difference Result 192256 states and 243709 transitions. [2022-10-16 15:00:06,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2022-10-16 15:00:06,617 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.492063492063492) internal successors, (220), 64 states have internal predecessors, (220), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2022-10-16 15:00:06,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 15:00:06,914 INFO L225 Difference]: With dead ends: 192256 [2022-10-16 15:00:06,914 INFO L226 Difference]: Without dead ends: 192255 [2022-10-16 15:00:06,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3367 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=3080, Invalid=10726, Unknown=0, NotChecked=0, Total=13806 [2022-10-16 15:00:06,956 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 490 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 15:00:06,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 895 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 15:00:07,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192255 states. [2022-10-16 15:00:27,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192255 to 125568. [2022-10-16 15:00:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125568 states, 125559 states have (on average 1.2838506200272382) internal successors, (161199), 125564 states have internal predecessors, (161199), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 15:00:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125568 states to 125568 states and 161204 transitions. [2022-10-16 15:00:28,538 INFO L78 Accepts]: Start accepts. Automaton has 125568 states and 161204 transitions. Word has length 280 [2022-10-16 15:00:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 15:00:28,538 INFO L495 AbstractCegarLoop]: Abstraction has 125568 states and 161204 transitions. [2022-10-16 15:00:28,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.492063492063492) internal successors, (220), 64 states have internal predecessors, (220), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 15:00:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 125568 states and 161204 transitions. [2022-10-16 15:00:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-10-16 15:00:29,041 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:00:29,041 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 17, 16, 16, 16, 13, 13, 12, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 15:00:29,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-10-16 15:00:29,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-10-16 15:00:29,254 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting sepErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 15:00:29,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:00:29,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1863419858, now seen corresponding path program 11 times [2022-10-16 15:00:29,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:00:29,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679570956] [2022-10-16 15:00:29,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:00:29,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 15:00:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 15:00:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 20 proven. 724 refuted. 0 times theorem prover too weak. 3216 trivial. 0 not checked. [2022-10-16 15:00:30,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 15:00:30,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679570956] [2022-10-16 15:00:30,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679570956] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 15:00:30,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926266031] [2022-10-16 15:00:30,350 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 15:00:30,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 15:00:30,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:00:30,356 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 15:00:30,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process