/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/list-ext-properties/960521-1_1-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:10:30,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:10:30,025 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:10:30,097 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:10:30,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:10:30,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:10:30,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:10:30,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:10:30,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:10:30,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:10:30,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:10:30,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:10:30,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:10:30,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:10:30,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:10:30,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:10:30,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:10:30,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:10:30,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:10:30,159 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:10:30,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:10:30,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:10:30,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:10:30,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:10:30,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:10:30,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:10:30,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:10:30,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:10:30,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:10:30,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:10:30,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:10:30,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:10:30,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:10:30,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:10:30,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:10:30,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:10:30,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:10:30,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:10:30,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:10:30,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:10:30,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:10:30,202 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 14:10:30,263 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:10:30,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:10:30,265 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:10:30,265 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:10:30,266 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:10:30,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:10:30,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:10:30,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:10:30,270 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:10:30,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:10:30,272 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:10:30,272 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:10:30,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:10:30,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:10:30,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:10:30,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:10:30,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:10:30,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:10:30,274 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:10:30,274 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:10:30,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:10:30,274 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:10:30,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:10:30,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:10:30,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:10:30,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:10:30,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:10:30,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:10:30,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:10:30,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:10:30,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:10:30,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:10:30,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:10:30,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:10:30,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:10:30,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:10:30,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:10:30,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:10:30,714 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:10:30,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/list-ext-properties/960521-1_1-2.i [2022-10-16 14:10:30,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/974a3eccb/80d1d32db4f34544922d7353ba47a9ab/FLAGf8d5275bb [2022-10-16 14:10:31,577 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:10:31,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-ext-properties/960521-1_1-2.i [2022-10-16 14:10:31,592 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/974a3eccb/80d1d32db4f34544922d7353ba47a9ab/FLAGf8d5275bb [2022-10-16 14:10:31,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/974a3eccb/80d1d32db4f34544922d7353ba47a9ab [2022-10-16 14:10:31,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:10:31,880 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:10:31,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:10:31,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:10:31,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:10:31,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:10:31" (1/1) ... [2022-10-16 14:10:31,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6417630b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:31, skipping insertion in model container [2022-10-16 14:10:31,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:10:31" (1/1) ... [2022-10-16 14:10:31,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:10:31,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:10:32,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:10:32,463 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:10:32,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:10:32,605 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:10:32,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32 WrapperNode [2022-10-16 14:10:32,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:10:32,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:10:32,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:10:32,611 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:10:32,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,700 INFO L138 Inliner]: procedures = 122, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-10-16 14:10:32,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:10:32,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:10:32,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:10:32,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:10:32,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,759 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:10:32,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:10:32,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:10:32,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:10:32,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (1/1) ... [2022-10-16 14:10:32,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:10:32,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:32,815 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 14:10:32,845 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 14:10:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:10:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:10:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:10:32,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:10:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:10:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:10:32,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:10:32,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:10:33,134 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:10:33,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:10:33,369 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:10:33,377 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:10:33,378 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:10:33,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:10:33 BoogieIcfgContainer [2022-10-16 14:10:33,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:10:33,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:10:33,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:10:33,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:10:33,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:10:31" (1/3) ... [2022-10-16 14:10:33,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c566fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:10:33, skipping insertion in model container [2022-10-16 14:10:33,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:10:32" (2/3) ... [2022-10-16 14:10:33,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c566fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:10:33, skipping insertion in model container [2022-10-16 14:10:33,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:10:33" (3/3) ... [2022-10-16 14:10:33,401 INFO L112 eAbstractionObserver]: Analyzing ICFG 960521-1_1-2.i [2022-10-16 14:10:33,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:10:33,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 14:10:33,482 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:10:33,491 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;@1b37d71f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:10:33,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 14:10:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 39 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:33,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:10:33,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:33,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:10:33,505 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 14:10:33,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:33,511 INFO L85 PathProgramCache]: Analyzing trace with hash 28695845, now seen corresponding path program 1 times [2022-10-16 14:10:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:33,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633473943] [2022-10-16 14:10:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:33,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:33,883 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 14:10:33,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:33,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633473943] [2022-10-16 14:10:33,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633473943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:33,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:33,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:10:33,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933539151] [2022-10-16 14:10:33,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:33,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:33,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:33,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:33,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:33,930 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 39 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:34,067 INFO L93 Difference]: Finished difference Result 106 states and 126 transitions. [2022-10-16 14:10:34,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:34,071 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 14:10:34,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:34,082 INFO L225 Difference]: With dead ends: 106 [2022-10-16 14:10:34,082 INFO L226 Difference]: Without dead ends: 62 [2022-10-16 14:10:34,087 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 14:10:34,092 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 34 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:34,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 82 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-16 14:10:34,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2022-10-16 14:10:34,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.5) internal successors, (63), 53 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2022-10-16 14:10:34,141 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 5 [2022-10-16 14:10:34,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:34,142 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2022-10-16 14:10:34,142 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 14:10:34,143 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2022-10-16 14:10:34,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 14:10:34,143 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:34,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:34,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:10:34,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:34,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:34,146 INFO L85 PathProgramCache]: Analyzing trace with hash 177815855, now seen corresponding path program 1 times [2022-10-16 14:10:34,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:34,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103720086] [2022-10-16 14:10:34,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:34,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:34,279 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 14:10:34,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:34,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103720086] [2022-10-16 14:10:34,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103720086] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:34,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:34,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:10:34,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140654298] [2022-10-16 14:10:34,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:34,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:34,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:34,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:34,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:34,292 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:34,391 INFO L93 Difference]: Finished difference Result 94 states and 110 transitions. [2022-10-16 14:10:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:34,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 14:10:34,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:34,396 INFO L225 Difference]: With dead ends: 94 [2022-10-16 14:10:34,396 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 14:10:34,398 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 14:10:34,400 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 22 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:34,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 82 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:34,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 14:10:34,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 62. [2022-10-16 14:10:34,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 50 states have (on average 1.46) internal successors, (73), 61 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2022-10-16 14:10:34,421 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 8 [2022-10-16 14:10:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:34,422 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2022-10-16 14:10:34,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,422 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2022-10-16 14:10:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:10:34,430 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:34,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:10:34,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:10:34,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:34,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:34,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1268661214, now seen corresponding path program 1 times [2022-10-16 14:10:34,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:34,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665412216] [2022-10-16 14:10:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:34,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:10:34,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:34,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665412216] [2022-10-16 14:10:34,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665412216] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:34,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:34,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:10:34,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724667045] [2022-10-16 14:10:34,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:34,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:10:34,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:34,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:10:34,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:10:34,519 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:34,540 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2022-10-16 14:10:34,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:10:34,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:10:34,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:34,543 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:10:34,543 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:10:34,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:10:34,550 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:34,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 64 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:34,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:10:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-16 14:10:34,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 50 states have (on average 1.44) internal successors, (72), 60 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2022-10-16 14:10:34,572 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 9 [2022-10-16 14:10:34,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:34,575 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2022-10-16 14:10:34,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:34,576 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2022-10-16 14:10:34,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:10:34,577 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:34,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:10:34,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:10:34,579 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:34,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:34,581 INFO L85 PathProgramCache]: Analyzing trace with hash 673792016, now seen corresponding path program 1 times [2022-10-16 14:10:34,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:34,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882310577] [2022-10-16 14:10:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:34,748 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 14:10:34,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:34,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882310577] [2022-10-16 14:10:34,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882310577] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:34,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515413418] [2022-10-16 14:10:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:34,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:34,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:34,752 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 14:10:34,775 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 14:10:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:34,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:34,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:34,903 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 14:10:34,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:34,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515413418] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:34,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:34,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:10:34,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401436249] [2022-10-16 14:10:34,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:34,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:34,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:34,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:34,908 INFO L87 Difference]: Start difference. First operand 61 states and 72 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 14:10:35,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:35,018 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2022-10-16 14:10:35,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:35,019 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 14:10:35,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:35,020 INFO L225 Difference]: With dead ends: 69 [2022-10-16 14:10:35,020 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 14:10:35,021 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 14:10:35,023 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 58 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:35,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 116 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:35,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 14:10:35,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2022-10-16 14:10:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 54 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:35,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2022-10-16 14:10:35,034 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 10 [2022-10-16 14:10:35,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:35,034 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2022-10-16 14:10:35,035 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 14:10:35,035 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2022-10-16 14:10:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:10:35,036 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:35,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:35,075 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 14:10:35,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:35,250 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:35,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:35,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1363128599, now seen corresponding path program 1 times [2022-10-16 14:10:35,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:35,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092875841] [2022-10-16 14:10:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:35,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:35,337 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 14:10:35,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:35,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092875841] [2022-10-16 14:10:35,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092875841] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:35,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:35,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:10:35,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310756703] [2022-10-16 14:10:35,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:35,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:35,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:35,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:35,341 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:35,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:35,402 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2022-10-16 14:10:35,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:35,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:10:35,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:35,404 INFO L225 Difference]: With dead ends: 77 [2022-10-16 14:10:35,404 INFO L226 Difference]: Without dead ends: 61 [2022-10-16 14:10:35,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:35,406 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 36 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:35,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 44 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-16 14:10:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2022-10-16 14:10:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 51 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-10-16 14:10:35,416 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 12 [2022-10-16 14:10:35,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:35,416 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-10-16 14:10:35,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:35,417 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-10-16 14:10:35,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:10:35,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:35,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:35,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:10:35,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:35,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1396372821, now seen corresponding path program 1 times [2022-10-16 14:10:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:35,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637276253] [2022-10-16 14:10:35,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:35,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:35,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:35,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637276253] [2022-10-16 14:10:35,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637276253] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:35,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207373437] [2022-10-16 14:10:35,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:35,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:35,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:35,576 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 14:10:35,599 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 14:10:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:35,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:35,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:35,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:35,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207373437] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:35,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:35,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-10-16 14:10:35,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499304802] [2022-10-16 14:10:35,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:35,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:35,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:35,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:35,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:10:35,734 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:35,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:35,816 INFO L93 Difference]: Finished difference Result 73 states and 77 transitions. [2022-10-16 14:10:35,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:35,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:10:35,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:35,818 INFO L225 Difference]: With dead ends: 73 [2022-10-16 14:10:35,818 INFO L226 Difference]: Without dead ends: 56 [2022-10-16 14:10:35,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:10:35,820 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 28 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:35,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 57 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:35,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-10-16 14:10:35,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2022-10-16 14:10:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2022-10-16 14:10:35,829 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 12 [2022-10-16 14:10:35,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:35,829 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2022-10-16 14:10:35,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2022-10-16 14:10:35,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 14:10:35,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:35,831 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:35,871 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 14:10:36,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-16 14:10:36,046 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:36,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:36,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1027590825, now seen corresponding path program 1 times [2022-10-16 14:10:36,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:36,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813362445] [2022-10-16 14:10:36,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:36,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:36,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:36,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:36,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813362445] [2022-10-16 14:10:36,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813362445] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:36,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762705014] [2022-10-16 14:10:36,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:36,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:36,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:36,125 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 14:10:36,139 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 14:10:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:36,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:36,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:36,234 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:36,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:36,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762705014] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:36,288 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:36,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 14:10:36,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996976429] [2022-10-16 14:10:36,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:36,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:10:36,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:36,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:10:36,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:10:36,291 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:36,403 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2022-10-16 14:10:36,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:10:36,404 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 14:10:36,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:36,405 INFO L225 Difference]: With dead ends: 87 [2022-10-16 14:10:36,405 INFO L226 Difference]: Without dead ends: 85 [2022-10-16 14:10:36,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:10:36,408 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:36,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 116 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:36,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-10-16 14:10:36,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 45. [2022-10-16 14:10:36,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:36,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-10-16 14:10:36,416 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 12 [2022-10-16 14:10:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:36,416 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-10-16 14:10:36,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 10 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-10-16 14:10:36,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:10:36,418 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:36,418 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:36,460 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 14:10:36,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:36,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:36,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1384841278, now seen corresponding path program 1 times [2022-10-16 14:10:36,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:36,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872091354] [2022-10-16 14:10:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:36,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:10:36,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:36,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872091354] [2022-10-16 14:10:36,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872091354] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:36,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:10:36,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:10:36,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244959372] [2022-10-16 14:10:36,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:36,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:36,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:36,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:36,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:10:36,700 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:36,737 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2022-10-16 14:10:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 14:10:36,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:36,739 INFO L225 Difference]: With dead ends: 61 [2022-10-16 14:10:36,739 INFO L226 Difference]: Without dead ends: 59 [2022-10-16 14:10:36,740 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 14:10:36,741 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:36,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 68 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:36,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-16 14:10:36,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2022-10-16 14:10:36,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-10-16 14:10:36,749 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 16 [2022-10-16 14:10:36,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:36,749 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-10-16 14:10:36,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:36,750 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-10-16 14:10:36,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:10:36,751 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:36,751 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:36,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:10:36,751 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:36,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:36,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1374660142, now seen corresponding path program 1 times [2022-10-16 14:10:36,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:36,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325611126] [2022-10-16 14:10:36,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:10:36,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:36,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325611126] [2022-10-16 14:10:36,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325611126] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:36,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089114450] [2022-10-16 14:10:36,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:36,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:36,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:36,841 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 14:10:36,849 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 14:10:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:36,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:36,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:10:36,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:37,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:10:37,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089114450] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:37,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:37,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:10:37,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335824197] [2022-10-16 14:10:37,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:37,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:10:37,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:37,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:10:37,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:10:37,022 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:37,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:37,157 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2022-10-16 14:10:37,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:10:37,158 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 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 16 [2022-10-16 14:10:37,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:37,161 INFO L225 Difference]: With dead ends: 78 [2022-10-16 14:10:37,161 INFO L226 Difference]: Without dead ends: 77 [2022-10-16 14:10:37,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:10:37,163 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 60 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:37,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 125 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:37,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-16 14:10:37,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 62. [2022-10-16 14:10:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 61 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:37,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-10-16 14:10:37,173 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 16 [2022-10-16 14:10:37,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:37,173 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-10-16 14:10:37,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-10-16 14:10:37,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:10:37,174 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:37,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:37,224 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 14:10:37,388 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 14:10:37,389 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:37,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:37,390 INFO L85 PathProgramCache]: Analyzing trace with hash 335208622, now seen corresponding path program 1 times [2022-10-16 14:10:37,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:37,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235975769] [2022-10-16 14:10:37,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:37,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:37,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:10:37,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:37,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235975769] [2022-10-16 14:10:37,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235975769] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:37,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457111218] [2022-10-16 14:10:37,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:37,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:37,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:37,471 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 14:10:37,493 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 14:10:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:37,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:37,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 14:10:37,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:37,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457111218] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:37,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:37,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:10:37,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426772527] [2022-10-16 14:10:37,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:37,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:37,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:37,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:37,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:37,573 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:37,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:37,644 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2022-10-16 14:10:37,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:37,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 14:10:37,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:37,646 INFO L225 Difference]: With dead ends: 70 [2022-10-16 14:10:37,646 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:10:37,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 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 14:10:37,647 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:37,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 68 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:37,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:10:37,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 61. [2022-10-16 14:10:37,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 60 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:37,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions. [2022-10-16 14:10:37,656 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 17 [2022-10-16 14:10:37,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:37,656 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 69 transitions. [2022-10-16 14:10:37,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions. [2022-10-16 14:10:37,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:10:37,657 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:37,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:37,697 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 14:10:37,872 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 14:10:37,873 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:37,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:37,874 INFO L85 PathProgramCache]: Analyzing trace with hash 2046108051, now seen corresponding path program 1 times [2022-10-16 14:10:37,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:37,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904803140] [2022-10-16 14:10:37,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:37,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:38,294 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 14:10:38,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:38,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904803140] [2022-10-16 14:10:38,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904803140] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:38,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866534053] [2022-10-16 14:10:38,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:38,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:38,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:38,296 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 14:10:38,320 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 14:10:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:38,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:10:38,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:38,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:10:38,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:10:38,490 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:38,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866534053] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:38,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:38,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-10-16 14:10:38,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640922278] [2022-10-16 14:10:38,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:38,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:38,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:38,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:38,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:10:38,492 INFO L87 Difference]: Start difference. First operand 61 states and 69 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:38,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:38,564 INFO L93 Difference]: Finished difference Result 70 states and 77 transitions. [2022-10-16 14:10:38,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:10:38,565 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:10:38,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:38,566 INFO L225 Difference]: With dead ends: 70 [2022-10-16 14:10:38,566 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:10:38,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:10:38,568 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:38,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 75 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:38,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:10:38,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2022-10-16 14:10:38,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 64 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2022-10-16 14:10:38,583 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 18 [2022-10-16 14:10:38,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:38,585 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2022-10-16 14:10:38,586 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2022-10-16 14:10:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:10:38,589 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:38,589 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:38,631 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 14:10:38,803 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 14:10:38,804 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash -608991618, now seen corresponding path program 1 times [2022-10-16 14:10:38,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:38,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264587025] [2022-10-16 14:10:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:38,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:38,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:38,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:38,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264587025] [2022-10-16 14:10:38,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264587025] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:38,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478125349] [2022-10-16 14:10:38,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:38,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:38,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:38,877 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 14:10:38,899 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 14:10:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:38,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:10:38,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:38,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:38,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478125349] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:38,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:38,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 14:10:38,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899729525] [2022-10-16 14:10:38,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:38,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:38,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:38,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:38,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:10:38,982 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:39,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:39,101 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2022-10-16 14:10:39,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:10:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:10:39,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:39,103 INFO L225 Difference]: With dead ends: 91 [2022-10-16 14:10:39,103 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 14:10:39,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:10:39,105 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 52 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:39,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 68 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:39,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 14:10:39,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2022-10-16 14:10:39,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 60 states have (on average 1.1833333333333333) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-10-16 14:10:39,115 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 18 [2022-10-16 14:10:39,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:39,116 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-10-16 14:10:39,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:39,117 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-10-16 14:10:39,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:10:39,122 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:39,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:39,163 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 14:10:39,337 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 14:10:39,338 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:39,339 INFO L85 PathProgramCache]: Analyzing trace with hash -995159761, now seen corresponding path program 1 times [2022-10-16 14:10:39,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:39,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117969105] [2022-10-16 14:10:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:39,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:39,678 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 14:10:39,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:39,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117969105] [2022-10-16 14:10:39,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117969105] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:39,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983891855] [2022-10-16 14:10:39,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:39,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:39,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:39,680 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 14:10:39,702 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 14:10:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:39,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:10:39,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:39,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 14:10:39,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:10:39,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:39,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983891855] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:39,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:39,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-10-16 14:10:39,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158907507] [2022-10-16 14:10:39,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:39,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:10:39,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:39,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:10:39,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:10:39,850 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:39,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:39,921 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2022-10-16 14:10:39,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:10:39,922 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 14:10:39,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:39,923 INFO L225 Difference]: With dead ends: 69 [2022-10-16 14:10:39,923 INFO L226 Difference]: Without dead ends: 53 [2022-10-16 14:10:39,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:10:39,925 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 16 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:39,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 76 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-16 14:10:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2022-10-16 14:10:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:39,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-10-16 14:10:39,930 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 19 [2022-10-16 14:10:39,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:39,930 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-10-16 14:10:39,931 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:39,931 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-10-16 14:10:39,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 14:10:39,932 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:39,932 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:39,979 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 14:10:40,148 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 14:10:40,149 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:40,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash -442108844, now seen corresponding path program 1 times [2022-10-16 14:10:40,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:40,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443250293] [2022-10-16 14:10:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:40,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:10:40,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:40,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443250293] [2022-10-16 14:10:40,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443250293] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:40,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070565669] [2022-10-16 14:10:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:40,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:40,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:40,223 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 14:10:40,235 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 14:10:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:40,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:10:40,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:10:40,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:40,472 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:10:40,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070565669] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:40,473 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:40,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 15 [2022-10-16 14:10:40,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252810527] [2022-10-16 14:10:40,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:40,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:10:40,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:40,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:10:40,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:10:40,477 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:40,721 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2022-10-16 14:10:40,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:10:40,721 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 14:10:40,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:40,722 INFO L225 Difference]: With dead ends: 89 [2022-10-16 14:10:40,722 INFO L226 Difference]: Without dead ends: 67 [2022-10-16 14:10:40,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:10:40,724 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 80 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:40,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 99 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:40,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-10-16 14:10:40,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 56. [2022-10-16 14:10:40,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.196078431372549) internal successors, (61), 55 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2022-10-16 14:10:40,729 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 26 [2022-10-16 14:10:40,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:40,730 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2022-10-16 14:10:40,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.466666666666667) internal successors, (52), 15 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:40,730 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2022-10-16 14:10:40,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:10:40,731 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:40,731 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:40,769 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 14:10:40,945 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 14:10:40,946 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:40,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:40,947 INFO L85 PathProgramCache]: Analyzing trace with hash 2066776006, now seen corresponding path program 2 times [2022-10-16 14:10:40,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:40,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008618474] [2022-10-16 14:10:40,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:40,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:41,038 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:10:41,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:41,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008618474] [2022-10-16 14:10:41,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008618474] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:41,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113766240] [2022-10-16 14:10:41,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:41,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:41,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:41,041 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 14:10:41,053 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 14:10:41,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:10:41,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:41,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:10:41,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:41,171 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:10:41,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:10:41,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113766240] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:41,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:41,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-10-16 14:10:41,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473867825] [2022-10-16 14:10:41,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:41,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:10:41,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:41,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:10:41,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:10:41,250 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:41,468 INFO L93 Difference]: Finished difference Result 109 states and 120 transitions. [2022-10-16 14:10:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:10:41,469 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 14:10:41,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:41,470 INFO L225 Difference]: With dead ends: 109 [2022-10-16 14:10:41,470 INFO L226 Difference]: Without dead ends: 108 [2022-10-16 14:10:41,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2022-10-16 14:10:41,473 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 107 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:41,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 114 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-10-16 14:10:41,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 45. [2022-10-16 14:10:41,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-10-16 14:10:41,480 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 28 [2022-10-16 14:10:41,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:41,483 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-10-16 14:10:41,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-10-16 14:10:41,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 14:10:41,487 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:41,487 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:41,525 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 14:10:41,702 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 14:10:41,703 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:41,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1803632902, now seen corresponding path program 1 times [2022-10-16 14:10:41,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:41,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067961648] [2022-10-16 14:10:41,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:41,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:41,822 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:10:41,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:41,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067961648] [2022-10-16 14:10:41,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067961648] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:41,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366219637] [2022-10-16 14:10:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:41,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:41,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:41,825 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 14:10:41,838 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 14:10:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:41,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:10:41,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:42,025 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:10:42,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:10:42,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366219637] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:42,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:42,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-10-16 14:10:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928238010] [2022-10-16 14:10:42,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:42,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:10:42,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:42,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:10:42,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:10:42,113 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:42,264 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2022-10-16 14:10:42,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:10:42,264 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 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 31 [2022-10-16 14:10:42,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:42,265 INFO L225 Difference]: With dead ends: 95 [2022-10-16 14:10:42,266 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 14:10:42,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2022-10-16 14:10:42,267 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 46 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:42,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 97 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:42,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 14:10:42,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2022-10-16 14:10:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 68 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2022-10-16 14:10:42,276 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 31 [2022-10-16 14:10:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:42,276 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2022-10-16 14:10:42,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2666666666666666) internal successors, (49), 15 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2022-10-16 14:10:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 14:10:42,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:42,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:42,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 14:10:42,492 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 14:10:42,493 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:42,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:42,494 INFO L85 PathProgramCache]: Analyzing trace with hash 76444432, now seen corresponding path program 1 times [2022-10-16 14:10:42,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:42,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929287567] [2022-10-16 14:10:42,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:42,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:43,240 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:43,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:43,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929287567] [2022-10-16 14:10:43,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929287567] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:43,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500081457] [2022-10-16 14:10:43,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:43,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:43,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:43,243 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 14:10:43,250 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 14:10:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:43,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 14:10:43,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:43,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:10:43,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 14:10:43,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:10:43,465 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:10:43,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 14:10:43,777 INFO L356 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-10-16 14:10:43,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 16 [2022-10-16 14:10:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:10:43,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:44,132 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_280 Int) (v_ArrVal_279 (Array Int Int))) (or (let ((.cse0 (select (store |c_#memory_int| c_~a~0.base v_ArrVal_279) c_~b~0.base))) (< (select .cse0 (+ c_~b~0.offset (- 4))) (+ (select (store .cse0 c_~b~0.offset v_ArrVal_280) (+ c_~b~0.offset (* c_~n~0 4) (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_280)))) is different from false [2022-10-16 14:10:44,211 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:10:44,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 40 [2022-10-16 14:10:44,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 14:10:44,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-10-16 14:10:44,231 INFO L356 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-10-16 14:10:44,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 33 [2022-10-16 14:10:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 5 not checked. [2022-10-16 14:10:44,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500081457] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:44,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:44,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 28 [2022-10-16 14:10:44,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842164845] [2022-10-16 14:10:44,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:44,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 14:10:44,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 14:10:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=624, Unknown=1, NotChecked=52, Total=812 [2022-10-16 14:10:44,335 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand has 29 states, 28 states have (on average 3.107142857142857) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:45,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:45,091 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2022-10-16 14:10:45,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 14:10:45,092 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.107142857142857) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 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 32 [2022-10-16 14:10:45,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:45,092 INFO L225 Difference]: With dead ends: 98 [2022-10-16 14:10:45,093 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 14:10:45,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 49 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=238, Invalid=1025, Unknown=1, NotChecked=68, Total=1332 [2022-10-16 14:10:45,094 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 91 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 91 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:45,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 202 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 357 Invalid, 0 Unknown, 91 Unchecked, 0.3s Time] [2022-10-16 14:10:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 14:10:45,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 73. [2022-10-16 14:10:45,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 69 states have (on average 1.1304347826086956) internal successors, (78), 72 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:45,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2022-10-16 14:10:45,102 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 32 [2022-10-16 14:10:45,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:45,103 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2022-10-16 14:10:45,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.107142857142857) internal successors, (87), 29 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:45,103 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2022-10-16 14:10:45,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 14:10:45,104 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:45,104 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:45,142 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 14:10:45,317 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,SelfDestructingSolverStorable16 [2022-10-16 14:10:45,318 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:45,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:45,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1925189806, now seen corresponding path program 1 times [2022-10-16 14:10:45,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:45,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100387496] [2022-10-16 14:10:45,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:45,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:46,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:46,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100387496] [2022-10-16 14:10:46,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100387496] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:46,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494972839] [2022-10-16 14:10:46,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:46,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:46,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:46,016 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 14:10:46,043 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 14:10:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:46,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-16 14:10:46,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:46,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 14:10:46,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:10:46,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:10:46,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:10:46,343 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 14:10:46,487 INFO L356 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-10-16 14:10:46,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 16 [2022-10-16 14:10:46,510 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:10:46,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:46,737 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_312 (Array Int Int)) (v_ArrVal_314 Int)) (or (let ((.cse0 (select (store |c_#memory_int| c_~a~0.base v_ArrVal_312) c_~b~0.base))) (< (select (store .cse0 c_~b~0.offset v_ArrVal_314) (+ c_~b~0.offset (* c_~n~0 4) (- 8))) (+ 2147483649 (select .cse0 (+ c_~b~0.offset (- 4)))))) (not (<= v_ArrVal_314 c_~n~0)))) is different from false [2022-10-16 14:10:46,798 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:10:46,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 40 [2022-10-16 14:10:46,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 14:10:46,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-10-16 14:10:46,818 INFO L356 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-10-16 14:10:46,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 33 [2022-10-16 14:10:46,907 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 5 not checked. [2022-10-16 14:10:46,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494972839] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:46,907 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:46,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 28 [2022-10-16 14:10:46,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592258006] [2022-10-16 14:10:46,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:46,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 14:10:46,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:46,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 14:10:46,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=624, Unknown=1, NotChecked=52, Total=812 [2022-10-16 14:10:46,910 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 29 states, 28 states have (on average 3.2142857142857144) internal successors, (90), 29 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:47,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:47,584 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2022-10-16 14:10:47,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:10:47,585 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.2142857142857144) internal successors, (90), 29 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-10-16 14:10:47,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:47,586 INFO L225 Difference]: With dead ends: 80 [2022-10-16 14:10:47,586 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 14:10:47,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=250, Invalid=1013, Unknown=1, NotChecked=68, Total=1332 [2022-10-16 14:10:47,588 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 101 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 101 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:47,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 170 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 314 Invalid, 0 Unknown, 101 Unchecked, 0.2s Time] [2022-10-16 14:10:47,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 14:10:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2022-10-16 14:10:47,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-10-16 14:10:47,594 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 33 [2022-10-16 14:10:47,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:47,594 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-10-16 14:10:47,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.2142857142857144) internal successors, (90), 29 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-10-16 14:10:47,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 14:10:47,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:47,596 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:47,642 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 14:10:47,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:10:47,810 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:47,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:47,811 INFO L85 PathProgramCache]: Analyzing trace with hash -752534913, now seen corresponding path program 2 times [2022-10-16 14:10:47,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:47,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284347710] [2022-10-16 14:10:47,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:47,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:48,001 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:10:48,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:48,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284347710] [2022-10-16 14:10:48,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284347710] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:48,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41695439] [2022-10-16 14:10:48,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:48,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:48,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:48,003 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 14:10:48,028 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 14:10:48,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:10:48,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:48,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:10:48,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:48,216 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:10:48,217 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:48,320 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:10:48,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41695439] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:48,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:48,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 21 [2022-10-16 14:10:48,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005248074] [2022-10-16 14:10:48,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:48,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-16 14:10:48,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:48,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-16 14:10:48,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-16 14:10:48,323 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:48,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:48,527 INFO L93 Difference]: Finished difference Result 85 states and 90 transitions. [2022-10-16 14:10:48,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:10:48,528 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-10-16 14:10:48,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:48,528 INFO L225 Difference]: With dead ends: 85 [2022-10-16 14:10:48,528 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 14:10:48,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 53 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=589, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:10:48,530 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 119 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:48,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 112 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:48,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 14:10:48,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 53. [2022-10-16 14:10:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2022-10-16 14:10:48,535 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 35 [2022-10-16 14:10:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:48,536 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2022-10-16 14:10:48,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.380952380952381) internal successors, (50), 21 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2022-10-16 14:10:48,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:10:48,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:48,537 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:48,575 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 14:10:48,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:48,738 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:48,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:48,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1871602045, now seen corresponding path program 3 times [2022-10-16 14:10:48,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:48,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116780571] [2022-10-16 14:10:48,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:48,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:48,824 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:10:48,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:48,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116780571] [2022-10-16 14:10:48,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116780571] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:48,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227233083] [2022-10-16 14:10:48,825 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:10:48,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:48,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:48,827 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 14:10:48,858 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 14:10:48,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:10:48,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:48,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:48,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-16 14:10:48,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:48,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227233083] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:48,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:48,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 14:10:48,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421221229] [2022-10-16 14:10:48,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:48,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:10:48,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:48,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:10:48,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:10:48,934 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:48,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:48,962 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2022-10-16 14:10:48,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:10:48,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 14:10:48,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:48,964 INFO L225 Difference]: With dead ends: 53 [2022-10-16 14:10:48,964 INFO L226 Difference]: Without dead ends: 52 [2022-10-16 14:10:48,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:10:48,965 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:48,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 44 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:48,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-10-16 14:10:48,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-10-16 14:10:48,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.1224489795918366) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-10-16 14:10:48,975 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 39 [2022-10-16 14:10:48,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:48,975 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-10-16 14:10:48,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:48,976 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-10-16 14:10:48,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 14:10:48,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:48,977 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:49,009 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 14:10:49,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:49,191 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:49,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash 2108278067, now seen corresponding path program 2 times [2022-10-16 14:10:49,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:49,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541068667] [2022-10-16 14:10:49,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:49,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:10:49,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:49,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541068667] [2022-10-16 14:10:49,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541068667] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:49,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024021531] [2022-10-16 14:10:49,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:49,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:49,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:49,375 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 14:10:49,398 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 14:10:49,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:10:49,458 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:49,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjunts are in the unsatisfiable core [2022-10-16 14:10:49,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:10:49,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:10:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:10:49,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024021531] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:10:49,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:10:49,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 17 [2022-10-16 14:10:49,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367796027] [2022-10-16 14:10:49,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:10:49,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-16 14:10:49,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:49,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-16 14:10:49,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:10:49,691 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:49,850 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2022-10-16 14:10:49,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:10:49,851 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 14:10:49,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:49,852 INFO L225 Difference]: With dead ends: 62 [2022-10-16 14:10:49,852 INFO L226 Difference]: Without dead ends: 55 [2022-10-16 14:10:49,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 67 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-10-16 14:10:49,853 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 65 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:49,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 76 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:10:49,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-16 14:10:49,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2022-10-16 14:10:49,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 49 states have (on average 1.1020408163265305) internal successors, (54), 51 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:49,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2022-10-16 14:10:49,859 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 40 [2022-10-16 14:10:49,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:49,859 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2022-10-16 14:10:49,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:49,859 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2022-10-16 14:10:49,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 14:10:49,860 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:49,860 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:49,908 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 14:10:50,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:50,072 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:50,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:50,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1886126707, now seen corresponding path program 2 times [2022-10-16 14:10:50,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:50,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066761707] [2022-10-16 14:10:50,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:50,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:10:50,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:50,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066761707] [2022-10-16 14:10:50,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066761707] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:50,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193482528] [2022-10-16 14:10:50,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:10:50,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:50,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:50,261 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 14:10:50,282 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 14:10:50,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:10:50,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:50,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:10:50,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:50,368 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 14:10:50,368 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:10:50,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193482528] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:10:50,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:10:50,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2022-10-16 14:10:50,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523278550] [2022-10-16 14:10:50,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:10:50,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:10:50,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:10:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:10:50,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:10:50,371 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:50,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:10:50,428 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2022-10-16 14:10:50,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:10:50,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 14:10:50,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:10:50,430 INFO L225 Difference]: With dead ends: 52 [2022-10-16 14:10:50,430 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 14:10:50,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-10-16 14:10:50,431 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 22 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:10:50,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 46 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:10:50,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 14:10:50,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2022-10-16 14:10:50,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 47 states have (on average 1.0851063829787233) internal successors, (51), 48 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:50,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2022-10-16 14:10:50,436 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 44 [2022-10-16 14:10:50,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:10:50,437 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2022-10-16 14:10:50,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:10:50,437 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2022-10-16 14:10:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-16 14:10:50,438 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:10:50,438 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:10:50,482 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 14:10:50,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:50,651 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:10:50,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:10:50,652 INFO L85 PathProgramCache]: Analyzing trace with hash -93164531, now seen corresponding path program 3 times [2022-10-16 14:10:50,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:10:50,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983611111] [2022-10-16 14:10:50,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:10:50,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:10:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:10:51,785 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:10:51,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:10:51,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983611111] [2022-10-16 14:10:51,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983611111] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:10:51,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4147775] [2022-10-16 14:10:51,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:10:51,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:10:51,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:10:51,787 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 14:10:51,805 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 14:10:51,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 14:10:51,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:10:51,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-16 14:10:51,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:10:51,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 14:10:52,007 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:10:52,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:10:52,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:10:52,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:10:52,239 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-10-16 14:10:52,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 14:10:52,284 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-10-16 14:10:52,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 32 [2022-10-16 14:10:52,845 INFO L356 Elim1Store]: treesize reduction 34, result has 8.1 percent of original size [2022-10-16 14:10:52,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 16 [2022-10-16 14:10:52,910 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:10:52,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:24,319 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse0 (+ c_~b~0.offset (- 4))) (+ (select .cse0 (+ c_~b~0.offset (* c_~n~0 4) (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) is different from false [2022-10-16 14:11:24,507 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-10-16 14:11:24,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 1 [2022-10-16 14:11:24,509 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 9 not checked. [2022-10-16 14:11:24,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4147775] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:24,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:24,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15, 10] total 42 [2022-10-16 14:11:24,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246270128] [2022-10-16 14:11:24,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:24,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 14:11:24,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:24,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 14:11:24,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1505, Unknown=12, NotChecked=80, Total=1806 [2022-10-16 14:11:24,513 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 43 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:25,597 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~b~0.offset (- 4)))) (let ((.cse3 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (.cse2 (* c_~n~0 4))) (and (<= 3 c_~n~0) (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (<= 4 c_~b~0.offset) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse3 c_~n~0) (= |c_ULTIMATE.start_foo_~i~0#1| 0) (<= c_~b~0.offset 4) (= c_~n~0 .cse3) (<= (+ c_~b~0.offset .cse2) 16) (= 12 .cse2)))) is different from false [2022-10-16 14:11:26,457 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~b~0.offset (- 4)))) (let ((.cse3 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (.cse2 (* c_~n~0 4))) (and (<= 3 c_~n~0) (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (<= 4 c_~b~0.offset) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse3 c_~n~0) (= |c_ULTIMATE.start_foo_~i~0#1| 0) (<= c_~b~0.offset 4) (= c_~n~0 .cse3) (<= (+ c_~b~0.offset .cse2) 16)))) is different from false [2022-10-16 14:11:27,284 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~b~0.offset (- 4)))) (let ((.cse3 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (.cse2 (* c_~n~0 4))) (and (<= 3 c_~n~0) (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (<= 4 c_~b~0.offset) (= |c_ULTIMATE.start_foo_#t~post3#1| 0) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse3 c_~n~0) (<= c_~b~0.offset 4) (= c_~n~0 .cse3) (<= (+ c_~b~0.offset .cse2) 16)))) is different from false [2022-10-16 14:11:28,466 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~b~0.offset (- 4)))) (let ((.cse3 (* c_~n~0 4)) (.cse0 (* |c_ULTIMATE.start_foo_~i~0#1| 4)) (.cse4 (select (select |c_#memory_int| c_~b~0.base) .cse2))) (and (<= 3 c_~n~0) (<= c_~b~0.offset .cse0) (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (<= 4 c_~b~0.offset) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse1 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse1 .cse2) (+ (select .cse1 (+ c_~b~0.offset .cse3 (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse4 c_~n~0) (<= .cse3 (+ c_~b~0.offset 8)) (<= (+ c_~b~0.offset .cse3) (+ .cse0 12)) (= c_~n~0 .cse4)))) is different from false [2022-10-16 14:11:29,455 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (select |c_#memory_int| c_~b~0.base)) (.cse1 (+ c_~b~0.offset (- 4)))) (let ((.cse3 (select .cse4 .cse1)) (.cse2 (+ c_~b~0.offset (* c_~n~0 4) (- 8)))) (and (<= 3 c_~n~0) (not (= c_~b~0.base c_~a~0.base)) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse0 .cse1) (+ (select .cse0 .cse2) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse3 c_~n~0) (<= 0 |c_ULTIMATE.start_foo_~i~0#1|) (or (< (+ 2 |c_ULTIMATE.start_foo_~i~0#1|) c_~n~0) (< .cse3 (+ (select .cse4 .cse2) 2147483648)))))) is different from false [2022-10-16 14:11:30,868 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~b~0.offset (- 4)))) (and (<= 3 c_~n~0) (not (= c_~b~0.base c_~a~0.base)) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset (* c_~n~0 4) (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= (select (select |c_#memory_int| c_~b~0.base) .cse1) c_~n~0))) is different from false [2022-10-16 14:11:32,128 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (+ c_~b~0.offset (- 4)))) (let ((.cse0 (* c_~n~0 4)) (.cse4 (select (select |c_#memory_int| c_~b~0.base) .cse3)) (.cse1 (* |c_ULTIMATE.start_foo_#t~post3#1| 4))) (and (<= 3 c_~n~0) (<= (+ c_~b~0.offset .cse0) (+ .cse1 12)) (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (<= 4 c_~b~0.offset) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse2 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse2 .cse3) (+ (select .cse2 (+ c_~b~0.offset .cse0 (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse4 c_~n~0) (<= .cse0 (+ c_~b~0.offset 8)) (= c_~n~0 .cse4) (<= c_~b~0.offset .cse1)))) is different from false [2022-10-16 14:11:33,361 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_~b~0.offset (- 4)))) (let ((.cse3 (* c_~n~0 4)) (.cse0 (* |c_ULTIMATE.start_foo_~i~0#1| 4)) (.cse4 (select (select |c_#memory_int| c_~b~0.base) .cse2))) (and (<= 3 c_~n~0) (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (<= 4 c_~b~0.offset) (<= (+ c_~b~0.offset 4) .cse0) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse1 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse1 .cse2) (+ (select .cse1 (+ c_~b~0.offset .cse3 (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse4 c_~n~0) (<= .cse3 (+ c_~b~0.offset 8)) (<= (+ c_~b~0.offset .cse3) (+ c_~a~0.offset .cse0 8)) (= c_~n~0 .cse4)))) is different from false [2022-10-16 14:11:34,196 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~b~0.offset (- 4)))) (let ((.cse3 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (.cse2 (* c_~n~0 4))) (and (<= 3 c_~n~0) (not (= c_~b~0.base c_~a~0.base)) (forall ((|ULTIMATE.start_foo_~i~0#1| Int) (v_ArrVal_491 Int) (v_ArrVal_487 (Array Int Int))) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_487) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_491))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (not (<= c_~n~0 v_ArrVal_491)) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse3 c_~n~0) (= c_~n~0 .cse3) (= 12 .cse2)))) is different from false [2022-10-16 14:11:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:36,757 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2022-10-16 14:11:36,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-10-16 14:11:36,758 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 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 46 [2022-10-16 14:11:36,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:36,759 INFO L225 Difference]: With dead ends: 102 [2022-10-16 14:11:36,759 INFO L226 Difference]: Without dead ends: 101 [2022-10-16 14:11:36,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 1044 ImplicationChecksByTransitivity, 43.7s TimeCoverageRelationStatistics Valid=556, Invalid=3369, Unknown=21, NotChecked=1310, Total=5256 [2022-10-16 14:11:36,762 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 119 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 319 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:36,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 116 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 435 Invalid, 0 Unknown, 319 Unchecked, 0.3s Time] [2022-10-16 14:11:36,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-10-16 14:11:36,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 93. [2022-10-16 14:11:36,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 91 states have (on average 1.0879120879120878) internal successors, (99), 92 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:36,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2022-10-16 14:11:36,775 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 46 [2022-10-16 14:11:36,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:36,775 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2022-10-16 14:11:36,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.9285714285714284) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:36,776 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2022-10-16 14:11:36,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 14:11:36,776 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:36,776 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:36,804 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 14:11:36,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:36,991 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:11:36,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1406866933, now seen corresponding path program 2 times [2022-10-16 14:11:36,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:36,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318168673] [2022-10-16 14:11:36,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:36,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:38,028 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:11:38,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:38,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318168673] [2022-10-16 14:11:38,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318168673] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:38,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886453685] [2022-10-16 14:11:38,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:11:38,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:38,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:38,031 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 14:11:38,037 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 14:11:38,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:11:38,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:38,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 34 conjunts are in the unsatisfiable core [2022-10-16 14:11:38,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:38,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:38,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 14:11:38,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:11:38,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:11:38,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:11:38,423 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-10-16 14:11:38,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 14:11:38,532 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:11:38,685 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:38,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2022-10-16 14:11:38,721 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:11:38,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:41,431 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_532 Int) (v_ArrVal_531 (Array Int Int)) (v_ArrVal_535 Int)) (or (let ((.cse0 (select (store |c_#memory_int| c_~a~0.base v_ArrVal_531) c_~b~0.base))) (< (select (store (store .cse0 c_~b~0.offset v_ArrVal_532) (+ c_~b~0.offset 4) v_ArrVal_535) (+ c_~b~0.offset (* c_~n~0 4) (- 8))) (+ 2147483649 (select .cse0 (+ c_~b~0.offset (- 4)))))) (not (<= v_ArrVal_535 c_~n~0)))) is different from false [2022-10-16 14:11:41,537 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:11:41,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 45 [2022-10-16 14:11:41,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 14:11:41,545 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-10-16 14:11:41,557 INFO L356 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-10-16 14:11:41,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 192 treesize of output 147 [2022-10-16 14:11:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 9 not checked. [2022-10-16 14:11:41,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886453685] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:41,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:41,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 15] total 44 [2022-10-16 14:11:41,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732937969] [2022-10-16 14:11:41,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:41,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-10-16 14:11:41,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:41,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-10-16 14:11:41,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1703, Unknown=2, NotChecked=84, Total=1980 [2022-10-16 14:11:41,830 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand has 45 states, 44 states have (on average 2.8863636363636362) internal successors, (127), 45 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:43,475 INFO L93 Difference]: Finished difference Result 143 states and 152 transitions. [2022-10-16 14:11:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 14:11:43,476 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.8863636363636362) internal successors, (127), 45 states have internal predecessors, (127), 0 states have call successors, (0), 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 47 [2022-10-16 14:11:43,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:43,478 INFO L225 Difference]: With dead ends: 143 [2022-10-16 14:11:43,478 INFO L226 Difference]: Without dead ends: 132 [2022-10-16 14:11:43,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=467, Invalid=3567, Unknown=2, NotChecked=124, Total=4160 [2022-10-16 14:11:43,482 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 98 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 329 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:43,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 249 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 795 Invalid, 0 Unknown, 329 Unchecked, 0.5s Time] [2022-10-16 14:11:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-10-16 14:11:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2022-10-16 14:11:43,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 127 states have (on average 1.0708661417322836) internal successors, (136), 128 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 136 transitions. [2022-10-16 14:11:43,498 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 136 transitions. Word has length 47 [2022-10-16 14:11:43,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:43,498 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 136 transitions. [2022-10-16 14:11:43,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.8863636363636362) internal successors, (127), 45 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:43,499 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 136 transitions. [2022-10-16 14:11:43,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-10-16 14:11:43,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:43,500 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:43,531 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 14:11:43,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:43,715 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:11:43,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:43,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1857486190, now seen corresponding path program 3 times [2022-10-16 14:11:43,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:43,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069480021] [2022-10-16 14:11:43,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:43,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 14:11:44,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:44,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069480021] [2022-10-16 14:11:44,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069480021] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:44,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402753870] [2022-10-16 14:11:44,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:11:44,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:44,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:44,020 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 14:11:44,040 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 14:11:44,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 14:11:44,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:44,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:11:44,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:44,315 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:11:44,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:11:44,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402753870] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:44,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:44,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 26 [2022-10-16 14:11:44,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070151877] [2022-10-16 14:11:44,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:44,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:11:44,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:44,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:11:44,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:11:44,477 INFO L87 Difference]: Start difference. First operand 129 states and 136 transitions. Second operand has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:45,005 INFO L93 Difference]: Finished difference Result 180 states and 189 transitions. [2022-10-16 14:11:45,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 14:11:45,007 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-10-16 14:11:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:45,007 INFO L225 Difference]: With dead ends: 180 [2022-10-16 14:11:45,008 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 14:11:45,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 83 SyntacticMatches, 9 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=356, Invalid=1450, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 14:11:45,009 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 159 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:45,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 152 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:11:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 14:11:45,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2022-10-16 14:11:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 1.0714285714285714) internal successors, (120), 113 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 120 transitions. [2022-10-16 14:11:45,025 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 120 transitions. Word has length 51 [2022-10-16 14:11:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:45,026 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 120 transitions. [2022-10-16 14:11:45,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 120 transitions. [2022-10-16 14:11:45,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:11:45,027 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:45,027 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:45,052 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 14:11:45,233 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,SelfDestructingSolverStorable24 [2022-10-16 14:11:45,234 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:11:45,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:45,235 INFO L85 PathProgramCache]: Analyzing trace with hash 713337827, now seen corresponding path program 4 times [2022-10-16 14:11:45,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:45,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359206242] [2022-10-16 14:11:45,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:45,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 19 proven. 17 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 14:11:45,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359206242] [2022-10-16 14:11:45,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359206242] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489440781] [2022-10-16 14:11:45,448 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:11:45,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:45,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:45,449 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 14:11:45,467 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 14:11:45,550 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:11:45,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:45,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 14:11:45,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:45,734 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 14:11:45,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 28 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-10-16 14:11:45,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489440781] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:45,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:45,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 25 [2022-10-16 14:11:45,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227878805] [2022-10-16 14:11:45,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:45,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 14:11:45,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:45,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 14:11:45,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=497, Unknown=0, NotChecked=0, Total=600 [2022-10-16 14:11:45,875 INFO L87 Difference]: Start difference. First operand 114 states and 120 transitions. Second operand has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:46,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:46,120 INFO L93 Difference]: Finished difference Result 157 states and 163 transitions. [2022-10-16 14:11:46,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 14:11:46,124 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 0 states have call successors, (0), 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 56 [2022-10-16 14:11:46,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:46,125 INFO L225 Difference]: With dead ends: 157 [2022-10-16 14:11:46,125 INFO L226 Difference]: Without dead ends: 114 [2022-10-16 14:11:46,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 91 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2022-10-16 14:11:46,127 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 84 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:46,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 86 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:11:46,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-16 14:11:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 84. [2022-10-16 14:11:46,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 83 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:46,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 87 transitions. [2022-10-16 14:11:46,140 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 87 transitions. Word has length 56 [2022-10-16 14:11:46,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:46,141 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 87 transitions. [2022-10-16 14:11:46,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.64) internal successors, (66), 25 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 87 transitions. [2022-10-16 14:11:46,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 14:11:46,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:46,142 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:46,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 14:11:46,355 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,SelfDestructingSolverStorable25 [2022-10-16 14:11:46,356 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:11:46,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:46,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1169672383, now seen corresponding path program 5 times [2022-10-16 14:11:46,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:46,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26889421] [2022-10-16 14:11:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:46,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:46,579 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 33 proven. 23 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:11:46,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:46,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26889421] [2022-10-16 14:11:46,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26889421] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:46,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578761098] [2022-10-16 14:11:46,580 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:11:46,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:46,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:46,584 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 14:11:46,612 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 14:11:46,692 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-10-16 14:11:46,693 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:46,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 14:11:46,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:46,878 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 42 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 14:11:46,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:11:47,025 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 42 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 14:11:47,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578761098] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:11:47,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:11:47,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 23 [2022-10-16 14:11:47,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815201849] [2022-10-16 14:11:47,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:11:47,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-10-16 14:11:47,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:11:47,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-10-16 14:11:47,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=421, Unknown=0, NotChecked=0, Total=506 [2022-10-16 14:11:47,029 INFO L87 Difference]: Start difference. First operand 84 states and 87 transitions. Second operand has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:47,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:11:47,264 INFO L93 Difference]: Finished difference Result 114 states and 117 transitions. [2022-10-16 14:11:47,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 14:11:47,265 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 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 58 [2022-10-16 14:11:47,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:11:47,265 INFO L225 Difference]: With dead ends: 114 [2022-10-16 14:11:47,266 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 14:11:47,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 99 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:11:47,267 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 45 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:11:47,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 94 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:11:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 14:11:47,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2022-10-16 14:11:47,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 61 states have (on average 1.0655737704918034) internal successors, (65), 62 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2022-10-16 14:11:47,287 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 58 [2022-10-16 14:11:47,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:11:47,287 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2022-10-16 14:11:47,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.4782608695652173) internal successors, (80), 23 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:11:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2022-10-16 14:11:47,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-10-16 14:11:47,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:11:47,289 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:11:47,325 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 14:11:47,504 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,SelfDestructingSolverStorable26 [2022-10-16 14:11:47,505 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:11:47,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:11:47,505 INFO L85 PathProgramCache]: Analyzing trace with hash -774693750, now seen corresponding path program 6 times [2022-10-16 14:11:47,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:11:47,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516808778] [2022-10-16 14:11:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:11:47,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:11:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:11:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:11:49,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:11:49,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516808778] [2022-10-16 14:11:49,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516808778] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:11:49,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322765582] [2022-10-16 14:11:49,179 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 14:11:49,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:11:49,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:11:49,181 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 14:11:49,203 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 14:11:49,287 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-10-16 14:11:49,288 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:11:49,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 14:11:49,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:11:49,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:11:49,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 14:11:49,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:11:49,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:11:49,398 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:11:49,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:11:49,514 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-10-16 14:11:49,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 14:11:49,615 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-10-16 14:11:49,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 14:11:49,644 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-10-16 14:11:49,645 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 32 [2022-10-16 14:11:50,263 INFO L356 Elim1Store]: treesize reduction 12, result has 67.6 percent of original size [2022-10-16 14:11:50,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 59 [2022-10-16 14:11:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 37 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-10-16 14:11:50,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:13:50,243 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 (+ c_~b~0.offset (- 4))) (+ (select .cse0 (+ c_~b~0.offset (* c_~n~0 4) (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) is different from false [2022-10-16 14:13:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 33 trivial. 13 not checked. [2022-10-16 14:13:50,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322765582] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:13:50,458 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:13:50,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 12, 13] total 50 [2022-10-16 14:13:50,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622782827] [2022-10-16 14:13:50,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:13:50,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 14:13:50,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:13:50,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 14:13:50,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=2109, Unknown=46, NotChecked=96, Total=2550 [2022-10-16 14:13:50,461 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 51 states, 50 states have (on average 2.74) internal successors, (137), 51 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:13:51,625 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~n~0 4)) (.cse1 (+ c_~b~0.offset (- 4)))) (and (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= 4 c_~b~0.offset) (<= 20 (+ c_~b~0.offset .cse2)) (= |c_ULTIMATE.start_foo_~i~0#1| 0) (<= c_~b~0.offset 4) (= c_~n~0 (select (select |c_#memory_int| c_~b~0.base) .cse1)))) is different from false [2022-10-16 14:13:53,004 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~n~0 4)) (.cse1 (+ c_~b~0.offset (- 4)))) (and (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= 4 c_~b~0.offset) (= |c_ULTIMATE.start_foo_#t~post3#1| 0) (<= 20 (+ c_~b~0.offset .cse2)) (<= c_~b~0.offset 4) (= c_~n~0 (select (select |c_#memory_int| c_~b~0.base) .cse1)))) is different from false [2022-10-16 14:13:56,111 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (* |c_ULTIMATE.start_foo_~i~0#1| 4)) (.cse2 (* c_~n~0 4)) (.cse1 (+ c_~b~0.offset (- 4)))) (and (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= (+ 16 .cse3) (+ c_~b~0.offset .cse2)) (<= .cse3 c_~b~0.offset) (<= (+ c_~b~0.offset 12) .cse2) (<= c_~b~0.offset 4) (= c_~n~0 (select (select |c_#memory_int| c_~b~0.base) .cse1)))) is different from false [2022-10-16 14:13:57,075 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~n~0 4)) (.cse1 (+ c_~b~0.offset (- 4))) (.cse3 (* |c_ULTIMATE.start_foo_#t~post3#1| 4))) (and (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= (+ .cse3 16) (+ c_~b~0.offset .cse2)) (<= (+ c_~b~0.offset 12) .cse2) (<= c_~b~0.offset 4) (= c_~n~0 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (<= .cse3 c_~b~0.offset))) is different from false [2022-10-16 14:13:58,502 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse3 (* |c_ULTIMATE.start_foo_~i~0#1| 4)) (.cse2 (* c_~n~0 4)) (.cse1 (+ c_~b~0.offset (- 4)))) (and (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse3 (+ c_~b~0.offset 4)) (<= (+ .cse3 12) (+ c_~b~0.offset .cse2)) (<= (+ c_~b~0.offset 12) .cse2) (<= c_~b~0.offset 4) (= c_~n~0 (select (select |c_#memory_int| c_~b~0.base) .cse1)))) is different from false [2022-10-16 14:13:59,797 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ c_~b~0.offset (- 4))) (.cse3 (* |c_ULTIMATE.start_foo_#t~post3#1| 4)) (.cse2 (* c_~n~0 4))) (and (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (<= .cse3 (+ c_~b~0.offset 4)) (<= (+ c_~b~0.offset 12) .cse2) (<= c_~b~0.offset 4) (= c_~n~0 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (<= (+ .cse3 12) (+ c_~b~0.offset .cse2)))) is different from false [2022-10-16 14:14:11,771 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* c_~n~0 4)) (.cse1 (+ c_~b~0.offset (- 4))) (.cse3 (* |c_ULTIMATE.start_foo_~i~0#1| 4))) (and (not (= c_~b~0.base c_~a~0.base)) (= c_~a~0.offset 0) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (< (+ 7 c_~a~0.offset .cse3) (+ c_~b~0.offset .cse2)) (<= (+ c_~b~0.offset 12) .cse2) (<= c_~b~0.offset 4) (= c_~n~0 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (<= .cse3 (+ c_~b~0.offset 8)))) is different from false [2022-10-16 14:14:12,854 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (* |c_ULTIMATE.start_foo_#t~post3#1| 4)) (.cse1 (+ c_~b~0.offset (- 4)))) (let ((.cse5 (select (select |c_#memory_int| c_~b~0.base) .cse1)) (.cse3 (+ .cse4 4)) (.cse2 (* c_~n~0 4))) (and (not (= c_~b~0.base c_~a~0.base)) (forall ((v_ArrVal_702 (Array Int Int)) (v_ArrVal_707 Int) (|ULTIMATE.start_foo_~i~0#1| Int)) (or (not (< (+ |ULTIMATE.start_foo_~i~0#1| 1) c_~n~0)) (not (<= c_~n~0 v_ArrVal_707)) (let ((.cse0 (store (select (store |c_#memory_int| c_~a~0.base v_ArrVal_702) c_~b~0.base) (+ c_~b~0.offset (* |ULTIMATE.start_foo_~i~0#1| 4)) v_ArrVal_707))) (< (select .cse0 .cse1) (+ (select .cse0 (+ c_~b~0.offset .cse2 (- 8))) 2147483648))) (< (+ |ULTIMATE.start_foo_~i~0#1| 2) c_~n~0))) (or (< .cse3 .cse2) (= (+ .cse4 20) (* c_~n~0 8))) (<= .cse5 c_~n~0) (= c_~n~0 .cse5) (<= .cse3 .cse2)))) is different from false [2022-10-16 14:14:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:14:51,201 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2022-10-16 14:14:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-16 14:14:51,202 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 2.74) internal successors, (137), 51 states have internal predecessors, (137), 0 states have call successors, (0), 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 60 [2022-10-16 14:14:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:14:51,202 INFO L225 Difference]: With dead ends: 95 [2022-10-16 14:14:51,203 INFO L226 Difference]: Without dead ends: 94 [2022-10-16 14:14:51,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 107 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 1253 ImplicationChecksByTransitivity, 180.9s TimeCoverageRelationStatistics Valid=655, Invalid=4005, Unknown=68, NotChecked=1278, Total=6006 [2022-10-16 14:14:51,205 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 99 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 270 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:14:51,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 149 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 442 Invalid, 0 Unknown, 270 Unchecked, 0.3s Time] [2022-10-16 14:14:51,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-10-16 14:14:51,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 62. [2022-10-16 14:14:51,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.0491803278688525) internal successors, (64), 61 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:14:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2022-10-16 14:14:51,216 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 60 [2022-10-16 14:14:51,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:14:51,217 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2022-10-16 14:14:51,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 2.74) internal successors, (137), 51 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:14:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2022-10-16 14:14:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-16 14:14:51,218 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:14:51,218 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:14:51,247 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 14:14:51,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:14:51,430 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:14:51,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:14:51,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1754297624, now seen corresponding path program 4 times [2022-10-16 14:14:51,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:14:51,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132397072] [2022-10-16 14:14:51,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:14:51,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:14:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:14:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 8 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:14:53,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:14:53,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132397072] [2022-10-16 14:14:53,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132397072] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:14:53,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627005341] [2022-10-16 14:14:53,147 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:14:53,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:14:53,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:14:53,148 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 14:14:53,150 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 14:14:53,258 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:14:53,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:14:53,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 14:14:53,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:14:53,445 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:14:53,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-16 14:14:53,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:14:53,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:14:53,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:14:53,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 14:14:53,759 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-10-16 14:14:53,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 14:14:53,922 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-10-16 14:14:53,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 14:14:54,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 14:14:54,272 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 14:14:54,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2022-10-16 14:14:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 14:14:54,315 INFO L328 TraceCheckSpWp]: Computing backward predicates...