/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/array-examples/sorting_selectionsort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:08:38,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:08:38,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:08:38,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:08:38,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:08:38,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:08:38,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:08:38,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:08:38,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:08:38,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:08:38,190 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:08:38,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-10-16 10:08:38,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:08:38,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:08:38,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:08:38,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:08:38,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:08:38,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:08:38,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:08:38,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:08:38,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:08:38,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:08:38,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:08:38,249 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 10:08:38,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:08:38,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:08:38,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:08:38,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:08:38,300 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:08:38,300 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:08:38,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:08:38,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:08:38,303 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:08:38,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:08:38,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:08:38,304 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:08:38,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:08:38,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:08:38,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:08:38,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:08:38,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:08:38,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:08:38,306 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:08:38,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:08:38,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:08:38,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:08:38,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:08:38,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:08:38,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:08:38,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:08:38,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:08:38,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:08:38,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:08:38,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:08:38,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:08:38,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:08:38,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:08:38,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:08:38,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:08:38,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:08:38,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:08:38,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:08:38,783 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:08:38,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i [2022-10-16 10:08:38,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d536b46/8177264bb5344671b507a6f58e93bb27/FLAGaeb39cd88 [2022-10-16 10:08:39,577 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:08:39,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i [2022-10-16 10:08:39,588 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d536b46/8177264bb5344671b507a6f58e93bb27/FLAGaeb39cd88 [2022-10-16 10:08:39,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/05d536b46/8177264bb5344671b507a6f58e93bb27 [2022-10-16 10:08:39,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:08:39,916 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:08:39,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:08:39,918 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:08:39,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:08:39,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:08:39" (1/1) ... [2022-10-16 10:08:39,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491e8852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:39, skipping insertion in model container [2022-10-16 10:08:39,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:08:39" (1/1) ... [2022-10-16 10:08:39,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:08:39,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:08:40,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i[823,836] [2022-10-16 10:08:40,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:08:40,144 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:08:40,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i[823,836] [2022-10-16 10:08:40,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:08:40,188 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:08:40,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40 WrapperNode [2022-10-16 10:08:40,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:08:40,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:08:40,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:08:40,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:08:40,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,244 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 138 [2022-10-16 10:08:40,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:08:40,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:08:40,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:08:40,246 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:08:40,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:08:40,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:08:40,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:08:40,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:08:40,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (1/1) ... [2022-10-16 10:08:40,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:08:40,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:40,336 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 10:08:40,356 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 10:08:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:08:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:08:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:08:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:08:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:08:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:08:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:08:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-16 10:08:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-16 10:08:40,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:08:40,514 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:08:40,516 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:08:40,839 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:08:40,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:08:40,849 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-16 10:08:40,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:08:40 BoogieIcfgContainer [2022-10-16 10:08:40,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:08:40,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:08:40,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:08:40,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:08:40,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:08:39" (1/3) ... [2022-10-16 10:08:40,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b540d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:08:40, skipping insertion in model container [2022-10-16 10:08:40,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:08:40" (2/3) ... [2022-10-16 10:08:40,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b540d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:08:40, skipping insertion in model container [2022-10-16 10:08:40,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:08:40" (3/3) ... [2022-10-16 10:08:40,900 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_2_ground.i [2022-10-16 10:08:40,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:08:40,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-16 10:08:41,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:08:41,058 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;@7ee36e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:08:41,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-10-16 10:08:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 55 states have (on average 1.7818181818181817) internal successors, (98), 79 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 10:08:41,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:08:41,073 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:41,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:08:41,075 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:41,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:41,082 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:08:41,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:41,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198572685] [2022-10-16 10:08:41,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:41,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:41,393 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 10:08:41,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:41,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198572685] [2022-10-16 10:08:41,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198572685] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:41,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:41,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:41,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644610263] [2022-10-16 10:08:41,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:41,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:41,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:41,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:41,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:41,451 INFO L87 Difference]: Start difference. First operand has 84 states, 55 states have (on average 1.7818181818181817) internal successors, (98), 79 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:41,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:41,740 INFO L93 Difference]: Finished difference Result 207 states and 272 transitions. [2022-10-16 10:08:41,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:41,746 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 10:08:41,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:41,767 INFO L225 Difference]: With dead ends: 207 [2022-10-16 10:08:41,767 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 10:08:41,772 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 10:08:41,778 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 47 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:41,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 223 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:08:41,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 10:08:41,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 114. [2022-10-16 10:08:41,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.5833333333333333) internal successors, (133), 107 states have internal predecessors, (133), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:41,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2022-10-16 10:08:41,871 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 5 [2022-10-16 10:08:41,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:41,873 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2022-10-16 10:08:41,874 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 10:08:41,875 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2022-10-16 10:08:41,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:08:41,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:41,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:08:41,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:08:41,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:41,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:08:41,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:41,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167646271] [2022-10-16 10:08:41,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:41,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:42,017 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:08:42,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:42,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167646271] [2022-10-16 10:08:42,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167646271] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:42,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:42,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068023957] [2022-10-16 10:08:42,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:42,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:42,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:42,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:42,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:42,024 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:42,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:42,101 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2022-10-16 10:08:42,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:42,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:08:42,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:42,103 INFO L225 Difference]: With dead ends: 114 [2022-10-16 10:08:42,103 INFO L226 Difference]: Without dead ends: 110 [2022-10-16 10:08:42,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:08:42,106 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 52 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:42,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 154 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:42,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-16 10:08:42,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-10-16 10:08:42,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 84 states have (on average 1.5357142857142858) internal successors, (129), 103 states have internal predecessors, (129), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 10:08:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 139 transitions. [2022-10-16 10:08:42,121 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 139 transitions. Word has length 9 [2022-10-16 10:08:42,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:42,121 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 139 transitions. [2022-10-16 10:08:42,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 139 transitions. [2022-10-16 10:08:42,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:08:42,122 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:42,123 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:08:42,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:08:42,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:42,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:08:42,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:42,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62945708] [2022-10-16 10:08:42,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:42,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:42,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:42,237 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 10:08:42,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:42,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62945708] [2022-10-16 10:08:42,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62945708] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:42,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321757980] [2022-10-16 10:08:42,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:42,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:42,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:42,241 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 10:08:42,246 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 10:08:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:42,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:08:42,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:42,387 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 10:08:42,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:42,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321757980] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:42,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:42,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:08:42,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616874576] [2022-10-16 10:08:42,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:42,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:08:42,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:42,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:08:42,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:08:42,391 INFO L87 Difference]: Start difference. First operand 110 states and 139 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 10:08:42,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:42,511 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2022-10-16 10:08:42,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:08:42,512 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 10:08:42,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:42,513 INFO L225 Difference]: With dead ends: 120 [2022-10-16 10:08:42,513 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 10:08:42,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 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 10:08:42,516 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 134 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:42,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 233 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:42,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 10:08:42,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 73. [2022-10-16 10:08:42,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.471698113207547) internal successors, (78), 68 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 10:08:42,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-16 10:08:42,530 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 10 [2022-10-16 10:08:42,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:42,530 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-16 10:08:42,531 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 10:08:42,531 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-16 10:08:42,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 10:08:42,532 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:42,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:42,571 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 10:08:42,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:42,747 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:42,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:42,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1289978878, now seen corresponding path program 1 times [2022-10-16 10:08:42,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:42,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874696879] [2022-10-16 10:08:42,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:42,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:42,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:42,831 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 10:08:42,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:42,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874696879] [2022-10-16 10:08:42,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874696879] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:42,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936634414] [2022-10-16 10:08:42,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:42,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:42,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:42,835 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 10:08:42,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:08:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:42,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:08:42,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:42,926 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 10:08:42,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:42,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936634414] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:42,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:42,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:08:42,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247110028] [2022-10-16 10:08:42,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:42,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:42,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:42,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:42,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:42,935 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:42,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:42,962 INFO L93 Difference]: Finished difference Result 137 states and 160 transitions. [2022-10-16 10:08:42,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:42,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 10:08:42,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:42,966 INFO L225 Difference]: With dead ends: 137 [2022-10-16 10:08:42,966 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 10:08:42,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:42,972 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 5 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:42,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 146 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 10:08:42,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-16 10:08:42,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 68 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 10:08:43,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-16 10:08:43,002 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 14 [2022-10-16 10:08:43,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:43,002 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-16 10:08:43,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:43,003 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-16 10:08:43,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:08:43,004 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:43,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:43,042 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 10:08:43,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:08:43,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1334639472, now seen corresponding path program 1 times [2022-10-16 10:08:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:43,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484616495] [2022-10-16 10:08:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:43,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:43,334 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 10:08:43,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:43,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484616495] [2022-10-16 10:08:43,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484616495] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:43,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075031308] [2022-10-16 10:08:43,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:43,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:43,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:43,337 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 10:08:43,360 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 10:08:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:43,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:08:43,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:43,425 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 10:08:43,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:08:43,469 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 10:08:43,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075031308] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:08:43,470 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:08:43,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:08:43,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435107395] [2022-10-16 10:08:43,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:08:43,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:08:43,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:43,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:08:43,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:08:43,473 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 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 10:08:43,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:43,701 INFO L93 Difference]: Finished difference Result 270 states and 320 transitions. [2022-10-16 10:08:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 10:08:43,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 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 15 [2022-10-16 10:08:43,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:43,704 INFO L225 Difference]: With dead ends: 270 [2022-10-16 10:08:43,704 INFO L226 Difference]: Without dead ends: 204 [2022-10-16 10:08:43,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:08:43,706 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 304 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:43,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 312 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:08:43,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-16 10:08:43,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 177. [2022-10-16 10:08:43,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 152 states have (on average 1.4539473684210527) internal successors, (221), 166 states have internal predecessors, (221), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-10-16 10:08:43,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 239 transitions. [2022-10-16 10:08:43,731 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 239 transitions. Word has length 15 [2022-10-16 10:08:43,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:43,731 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 239 transitions. [2022-10-16 10:08:43,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 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 10:08:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 239 transitions. [2022-10-16 10:08:43,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:08:43,732 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:43,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:43,760 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 10:08:43,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:43,949 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:43,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:43,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1215876728, now seen corresponding path program 2 times [2022-10-16 10:08:43,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:43,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271499895] [2022-10-16 10:08:43,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:43,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:44,107 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:08:44,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:44,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271499895] [2022-10-16 10:08:44,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271499895] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:44,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:44,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:44,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102139590] [2022-10-16 10:08:44,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:44,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:44,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:44,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:44,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:44,111 INFO L87 Difference]: Start difference. First operand 177 states and 239 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 10:08:44,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:44,193 INFO L93 Difference]: Finished difference Result 190 states and 244 transitions. [2022-10-16 10:08:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:44,194 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 23 [2022-10-16 10:08:44,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:44,195 INFO L225 Difference]: With dead ends: 190 [2022-10-16 10:08:44,195 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 10:08:44,196 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 10:08:44,197 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 51 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:44,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 185 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:44,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 10:08:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 180. [2022-10-16 10:08:44,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 155 states have (on average 1.4516129032258065) internal successors, (225), 169 states have internal predecessors, (225), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-10-16 10:08:44,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 243 transitions. [2022-10-16 10:08:44,217 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 243 transitions. Word has length 23 [2022-10-16 10:08:44,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:44,217 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 243 transitions. [2022-10-16 10:08:44,218 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 10:08:44,218 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 243 transitions. [2022-10-16 10:08:44,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:08:44,219 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:44,219 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:44,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:08:44,219 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:44,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:44,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1445268429, now seen corresponding path program 1 times [2022-10-16 10:08:44,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:44,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312933844] [2022-10-16 10:08:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:44,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:08:44,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:44,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312933844] [2022-10-16 10:08:44,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312933844] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:44,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077429190] [2022-10-16 10:08:44,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:44,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:44,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:44,340 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 10:08:44,348 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 10:08:44,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:44,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:08:44,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:08:44,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:08:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:08:44,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077429190] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:08:44,580 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:08:44,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2022-10-16 10:08:44,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137323176] [2022-10-16 10:08:44,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:08:44,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:08:44,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:44,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:08:44,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:08:44,583 INFO L87 Difference]: Start difference. First operand 180 states and 243 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 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 10:08:45,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:45,167 INFO L93 Difference]: Finished difference Result 551 states and 690 transitions. [2022-10-16 10:08:45,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:08:45,168 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 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) Word has length 27 [2022-10-16 10:08:45,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:45,171 INFO L225 Difference]: With dead ends: 551 [2022-10-16 10:08:45,171 INFO L226 Difference]: Without dead ends: 386 [2022-10-16 10:08:45,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=267, Invalid=855, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:08:45,174 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 911 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:45,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 728 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:08:45,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-10-16 10:08:45,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 321. [2022-10-16 10:08:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 288 states have (on average 1.4444444444444444) internal successors, (416), 302 states have internal predecessors, (416), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-16 10:08:45,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 450 transitions. [2022-10-16 10:08:45,205 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 450 transitions. Word has length 27 [2022-10-16 10:08:45,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:45,205 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 450 transitions. [2022-10-16 10:08:45,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 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 10:08:45,206 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 450 transitions. [2022-10-16 10:08:45,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 10:08:45,207 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:45,207 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:45,250 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 10:08:45,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:45,423 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:45,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:45,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1335813292, now seen corresponding path program 1 times [2022-10-16 10:08:45,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:45,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648424079] [2022-10-16 10:08:45,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:45,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:08:45,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:45,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648424079] [2022-10-16 10:08:45,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648424079] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:45,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249847685] [2022-10-16 10:08:45,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:45,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:45,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:45,613 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 10:08:45,626 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 10:08:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:45,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:08:45,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 10:08:45,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:45,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249847685] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:45,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:45,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:08:45,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481923660] [2022-10-16 10:08:45,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:45,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:45,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:45,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:45,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:45,716 INFO L87 Difference]: Start difference. First operand 321 states and 450 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:45,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:45,791 INFO L93 Difference]: Finished difference Result 455 states and 654 transitions. [2022-10-16 10:08:45,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:45,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-16 10:08:45,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:45,798 INFO L225 Difference]: With dead ends: 455 [2022-10-16 10:08:45,798 INFO L226 Difference]: Without dead ends: 453 [2022-10-16 10:08:45,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:45,804 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 33 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:45,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 132 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:45,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-10-16 10:08:45,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 339. [2022-10-16 10:08:45,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 306 states have (on average 1.4444444444444444) internal successors, (442), 320 states have internal predecessors, (442), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-16 10:08:45,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 476 transitions. [2022-10-16 10:08:45,847 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 476 transitions. Word has length 44 [2022-10-16 10:08:45,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:45,849 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 476 transitions. [2022-10-16 10:08:45,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:45,850 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 476 transitions. [2022-10-16 10:08:45,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 10:08:45,855 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:45,855 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:45,904 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 10:08:46,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:46,070 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1539461012, now seen corresponding path program 1 times [2022-10-16 10:08:46,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:46,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096459340] [2022-10-16 10:08:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:46,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:08:46,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:46,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096459340] [2022-10-16 10:08:46,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096459340] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:46,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568132521] [2022-10-16 10:08:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:46,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:46,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:46,237 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 10:08:46,256 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 10:08:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:46,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 10:08:46,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-16 10:08:46,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:46,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568132521] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:46,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:46,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 10:08:46,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811591341] [2022-10-16 10:08:46,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:46,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:08:46,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:46,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:08:46,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:46,332 INFO L87 Difference]: Start difference. First operand 339 states and 476 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:46,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:46,421 INFO L93 Difference]: Finished difference Result 455 states and 645 transitions. [2022-10-16 10:08:46,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:08:46,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-16 10:08:46,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:46,428 INFO L225 Difference]: With dead ends: 455 [2022-10-16 10:08:46,428 INFO L226 Difference]: Without dead ends: 453 [2022-10-16 10:08:46,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 10:08:46,434 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:46,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 136 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:46,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-10-16 10:08:46,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 348. [2022-10-16 10:08:46,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 315 states have (on average 1.4317460317460318) internal successors, (451), 329 states have internal predecessors, (451), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-16 10:08:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 485 transitions. [2022-10-16 10:08:46,472 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 485 transitions. Word has length 45 [2022-10-16 10:08:46,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:46,472 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 485 transitions. [2022-10-16 10:08:46,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 485 transitions. [2022-10-16 10:08:46,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 10:08:46,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:46,479 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:46,528 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 10:08:46,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:46,700 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:46,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:46,701 INFO L85 PathProgramCache]: Analyzing trace with hash 422331484, now seen corresponding path program 1 times [2022-10-16 10:08:46,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:46,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736528060] [2022-10-16 10:08:46,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:46,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-16 10:08:46,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:46,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736528060] [2022-10-16 10:08:46,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736528060] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:46,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77408665] [2022-10-16 10:08:46,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:46,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:46,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:46,811 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 10:08:46,830 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 10:08:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:46,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:08:46,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:08:47,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:08:47,406 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:08:47,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77408665] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:08:47,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:08:47,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 35 [2022-10-16 10:08:47,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735732467] [2022-10-16 10:08:47,407 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:08:47,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-16 10:08:47,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:47,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-16 10:08:47,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:08:47,410 INFO L87 Difference]: Start difference. First operand 348 states and 485 transitions. Second operand has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:48,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:48,649 INFO L93 Difference]: Finished difference Result 1121 states and 1425 transitions. [2022-10-16 10:08:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 10:08:48,649 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 10:08:48,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:48,654 INFO L225 Difference]: With dead ends: 1121 [2022-10-16 10:08:48,655 INFO L226 Difference]: Without dead ends: 804 [2022-10-16 10:08:48,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=989, Invalid=3301, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 10:08:48,660 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1678 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:48,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 1017 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:08:48,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-10-16 10:08:48,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 664. [2022-10-16 10:08:48,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 615 states have (on average 1.4308943089430894) internal successors, (880), 629 states have internal predecessors, (880), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-16 10:08:48,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 946 transitions. [2022-10-16 10:08:48,717 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 946 transitions. Word has length 48 [2022-10-16 10:08:48,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:48,717 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 946 transitions. [2022-10-16 10:08:48,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:48,718 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 946 transitions. [2022-10-16 10:08:48,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-16 10:08:48,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:48,738 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:48,777 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 10:08:48,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:48,947 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:48,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:48,948 INFO L85 PathProgramCache]: Analyzing trace with hash 730834903, now seen corresponding path program 2 times [2022-10-16 10:08:48,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:48,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427137668] [2022-10-16 10:08:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:48,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-10-16 10:08:49,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:49,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427137668] [2022-10-16 10:08:49,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427137668] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:49,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:49,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:08:49,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749793570] [2022-10-16 10:08:49,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:49,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:49,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:49,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:49,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:49,200 INFO L87 Difference]: Start difference. First operand 664 states and 946 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:49,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:49,306 INFO L93 Difference]: Finished difference Result 1237 states and 1784 transitions. [2022-10-16 10:08:49,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:49,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-10-16 10:08:49,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:49,313 INFO L225 Difference]: With dead ends: 1237 [2022-10-16 10:08:49,313 INFO L226 Difference]: Without dead ends: 652 [2022-10-16 10:08:49,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:49,317 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 19 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:49,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 140 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-10-16 10:08:49,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 650. [2022-10-16 10:08:49,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 602 states have (on average 1.4252491694352158) internal successors, (858), 616 states have internal predecessors, (858), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 10:08:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 922 transitions. [2022-10-16 10:08:49,373 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 922 transitions. Word has length 84 [2022-10-16 10:08:49,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:49,374 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 922 transitions. [2022-10-16 10:08:49,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:49,375 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 922 transitions. [2022-10-16 10:08:49,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-16 10:08:49,377 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:49,377 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:49,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:08:49,378 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:49,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:49,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1890336486, now seen corresponding path program 1 times [2022-10-16 10:08:49,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:49,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650945725] [2022-10-16 10:08:49,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:49,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:49,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 10:08:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-10-16 10:08:49,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:49,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650945725] [2022-10-16 10:08:49,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650945725] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:49,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:49,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:49,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027195462] [2022-10-16 10:08:49,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:49,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:49,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:49,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:49,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:49,526 INFO L87 Difference]: Start difference. First operand 650 states and 922 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:49,620 INFO L93 Difference]: Finished difference Result 819 states and 1177 transitions. [2022-10-16 10:08:49,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:49,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-10-16 10:08:49,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:49,626 INFO L225 Difference]: With dead ends: 819 [2022-10-16 10:08:49,627 INFO L226 Difference]: Without dead ends: 817 [2022-10-16 10:08:49,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 10:08:49,628 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 38 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:49,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 179 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2022-10-16 10:08:49,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 648. [2022-10-16 10:08:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 602 states have (on average 1.3970099667774087) internal successors, (841), 614 states have internal predecessors, (841), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-16 10:08:49,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 905 transitions. [2022-10-16 10:08:49,706 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 905 transitions. Word has length 90 [2022-10-16 10:08:49,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:49,707 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 905 transitions. [2022-10-16 10:08:49,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:49,707 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 905 transitions. [2022-10-16 10:08:49,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-16 10:08:49,708 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:49,708 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:49,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:08:49,709 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:49,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:49,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1529110927, now seen corresponding path program 1 times [2022-10-16 10:08:49,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:49,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36376857] [2022-10-16 10:08:49,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:49,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:49,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 10:08:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:49,876 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:08:49,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:49,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36376857] [2022-10-16 10:08:49,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36376857] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:49,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387694909] [2022-10-16 10:08:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:49,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:49,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:49,878 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 10:08:49,900 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 10:08:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:49,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:08:49,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:50,508 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:08:50,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:08:51,680 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:08:51,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387694909] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:08:51,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:08:51,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 33, 33] total 68 [2022-10-16 10:08:51,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79567699] [2022-10-16 10:08:51,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:08:51,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-16 10:08:51,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:51,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-16 10:08:51,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1099, Invalid=3457, Unknown=0, NotChecked=0, Total=4556 [2022-10-16 10:08:51,688 INFO L87 Difference]: Start difference. First operand 648 states and 905 transitions. Second operand has 68 states, 68 states have (on average 2.485294117647059) internal successors, (169), 68 states have internal predecessors, (169), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:08:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:55,198 INFO L93 Difference]: Finished difference Result 2115 states and 2701 transitions. [2022-10-16 10:08:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-10-16 10:08:55,199 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.485294117647059) internal successors, (169), 68 states have internal predecessors, (169), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2022-10-16 10:08:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:55,217 INFO L225 Difference]: With dead ends: 2115 [2022-10-16 10:08:55,218 INFO L226 Difference]: Without dead ends: 1530 [2022-10-16 10:08:55,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4198 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=3909, Invalid=13913, Unknown=0, NotChecked=0, Total=17822 [2022-10-16 10:08:55,233 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 3852 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:55,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 2334 Invalid, 1366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 10:08:55,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-10-16 10:08:55,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1280. [2022-10-16 10:08:55,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1202 states have (on average 1.4009983361064893) internal successors, (1684), 1214 states have internal predecessors, (1684), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-16 10:08:55,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1812 transitions. [2022-10-16 10:08:55,328 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1812 transitions. Word has length 91 [2022-10-16 10:08:55,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:55,328 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 1812 transitions. [2022-10-16 10:08:55,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.485294117647059) internal successors, (169), 68 states have internal predecessors, (169), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 10:08:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1812 transitions. [2022-10-16 10:08:55,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-16 10:08:55,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:55,337 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:55,378 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 10:08:55,553 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 10:08:55,554 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:55,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:55,555 INFO L85 PathProgramCache]: Analyzing trace with hash -318372874, now seen corresponding path program 2 times [2022-10-16 10:08:55,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:55,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679885630] [2022-10-16 10:08:55,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:55,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-16 10:08:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:55,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-10-16 10:08:55,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:55,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679885630] [2022-10-16 10:08:55,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679885630] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:55,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200235910] [2022-10-16 10:08:55,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:08:55,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:55,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:55,960 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 10:08:55,981 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 10:08:56,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:08:56,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:08:56,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:08:56,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:08:56,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1906 trivial. 0 not checked. [2022-10-16 10:08:56,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:08:56,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200235910] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:56,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:08:56,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 10:08:56,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152494155] [2022-10-16 10:08:56,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:56,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:08:56,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:56,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:08:56,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:08:56,115 INFO L87 Difference]: Start difference. First operand 1280 states and 1812 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:56,274 INFO L93 Difference]: Finished difference Result 1280 states and 1812 transitions. [2022-10-16 10:08:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:08:56,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-10-16 10:08:56,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:56,282 INFO L225 Difference]: With dead ends: 1280 [2022-10-16 10:08:56,282 INFO L226 Difference]: Without dead ends: 1279 [2022-10-16 10:08:56,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:08:56,284 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 67 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:56,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 173 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:56,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-10-16 10:08:56,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1279. [2022-10-16 10:08:56,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1202 states have (on average 1.3743760399334441) internal successors, (1652), 1213 states have internal predecessors, (1652), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-16 10:08:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1780 transitions. [2022-10-16 10:08:56,380 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1780 transitions. Word has length 159 [2022-10-16 10:08:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:56,381 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1780 transitions. [2022-10-16 10:08:56,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1780 transitions. [2022-10-16 10:08:56,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-16 10:08:56,383 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:56,383 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:56,427 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 10:08:56,598 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 10:08:56,598 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:56,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1079687089, now seen corresponding path program 1 times [2022-10-16 10:08:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:56,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150053185] [2022-10-16 10:08:56,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1906 trivial. 0 not checked. [2022-10-16 10:08:56,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:56,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150053185] [2022-10-16 10:08:56,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150053185] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:56,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:56,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:08:56,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502252032] [2022-10-16 10:08:56,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:56,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:56,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:56,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:56,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:56,848 INFO L87 Difference]: Start difference. First operand 1279 states and 1780 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:57,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:57,027 INFO L93 Difference]: Finished difference Result 2409 states and 3405 transitions. [2022-10-16 10:08:57,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:57,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-10-16 10:08:57,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:57,036 INFO L225 Difference]: With dead ends: 2409 [2022-10-16 10:08:57,036 INFO L226 Difference]: Without dead ends: 1285 [2022-10-16 10:08:57,041 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 10:08:57,042 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:57,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 164 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:08:57,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-10-16 10:08:57,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1280. [2022-10-16 10:08:57,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1203 states have (on average 1.374064837905237) internal successors, (1653), 1214 states have internal predecessors, (1653), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-16 10:08:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1781 transitions. [2022-10-16 10:08:57,153 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1781 transitions. Word has length 159 [2022-10-16 10:08:57,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:57,153 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 1781 transitions. [2022-10-16 10:08:57,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:08:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1781 transitions. [2022-10-16 10:08:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-16 10:08:57,156 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:57,156 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:57,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 10:08:57,157 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:57,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:57,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1061394857, now seen corresponding path program 1 times [2022-10-16 10:08:57,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:57,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310442734] [2022-10-16 10:08:57,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:57,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:57,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-16 10:08:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:57,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1908 trivial. 0 not checked. [2022-10-16 10:08:57,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:57,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310442734] [2022-10-16 10:08:57,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310442734] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:57,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:57,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:57,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657778699] [2022-10-16 10:08:57,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:57,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:57,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:57,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:57,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:57,400 INFO L87 Difference]: Start difference. First operand 1280 states and 1781 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:57,535 INFO L93 Difference]: Finished difference Result 1280 states and 1781 transitions. [2022-10-16 10:08:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:08:57,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-10-16 10:08:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:57,544 INFO L225 Difference]: With dead ends: 1280 [2022-10-16 10:08:57,544 INFO L226 Difference]: Without dead ends: 1279 [2022-10-16 10:08:57,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 10:08:57,545 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 89 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:57,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 99 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:57,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-10-16 10:08:57,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1279. [2022-10-16 10:08:57,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1203 states have (on average 1.3474646716541978) internal successors, (1621), 1213 states have internal predecessors, (1621), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-16 10:08:57,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1749 transitions. [2022-10-16 10:08:57,715 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1749 transitions. Word has length 169 [2022-10-16 10:08:57,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:57,716 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1749 transitions. [2022-10-16 10:08:57,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:57,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1749 transitions. [2022-10-16 10:08:57,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-16 10:08:57,719 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:57,719 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:57,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 10:08:57,719 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:57,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:57,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1632075482, now seen corresponding path program 1 times [2022-10-16 10:08:57,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:57,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183217183] [2022-10-16 10:08:57,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:57,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-16 10:08:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2022-10-16 10:08:57,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:57,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183217183] [2022-10-16 10:08:57,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183217183] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:08:57,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:08:57,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:08:57,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439150553] [2022-10-16 10:08:57,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:08:57,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:08:57,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:08:57,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:08:57,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:08:57,979 INFO L87 Difference]: Start difference. First operand 1279 states and 1749 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:08:58,191 INFO L93 Difference]: Finished difference Result 1637 states and 2291 transitions. [2022-10-16 10:08:58,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:08:58,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 182 [2022-10-16 10:08:58,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:08:58,206 INFO L225 Difference]: With dead ends: 1637 [2022-10-16 10:08:58,207 INFO L226 Difference]: Without dead ends: 1635 [2022-10-16 10:08:58,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 10:08:58,209 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 27 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:08:58,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 182 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:08:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-10-16 10:08:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1558. [2022-10-16 10:08:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1451 states have (on average 1.352170916609235) internal successors, (1962), 1461 states have internal predecessors, (1962), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-10-16 10:08:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2152 transitions. [2022-10-16 10:08:58,418 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2152 transitions. Word has length 182 [2022-10-16 10:08:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:08:58,419 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 2152 transitions. [2022-10-16 10:08:58,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 10:08:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2152 transitions. [2022-10-16 10:08:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-16 10:08:58,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:08:58,422 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:08:58,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 10:08:58,422 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:08:58,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:08:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2130767332, now seen corresponding path program 1 times [2022-10-16 10:08:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:08:58,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904948011] [2022-10-16 10:08:58,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:08:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-16 10:08:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:58,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2022-10-16 10:08:58,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:08:58,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904948011] [2022-10-16 10:08:58,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904948011] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:08:58,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057063123] [2022-10-16 10:08:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:08:58,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:08:58,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:08:58,767 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 10:08:58,790 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 10:08:58,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:08:58,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:08:58,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 10:09:00,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:04,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-16 10:09:04,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057063123] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:04,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:04,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 131 [2022-10-16 10:09:04,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570347800] [2022-10-16 10:09:04,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:04,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-10-16 10:09:04,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-10-16 10:09:04,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4167, Invalid=12863, Unknown=0, NotChecked=0, Total=17030 [2022-10-16 10:09:04,351 INFO L87 Difference]: Start difference. First operand 1558 states and 2152 transitions. Second operand has 131 states, 131 states have (on average 2.49618320610687) internal successors, (327), 131 states have internal predecessors, (327), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:33,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:09:33,458 INFO L93 Difference]: Finished difference Result 31997 states and 46373 transitions. [2022-10-16 10:09:33,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 321 states. [2022-10-16 10:09:33,467 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 2.49618320610687) internal successors, (327), 131 states have internal predecessors, (327), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 185 [2022-10-16 10:09:33,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:09:33,632 INFO L225 Difference]: With dead ends: 31997 [2022-10-16 10:09:33,632 INFO L226 Difference]: Without dead ends: 30566 [2022-10-16 10:09:33,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48678 ImplicationChecksByTransitivity, 17.8s TimeCoverageRelationStatistics Valid=29218, Invalid=117854, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 10:09:33,667 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 14075 mSDsluCounter, 4419 mSDsCounter, 0 mSdLazyCounter, 2938 mSolverCounterSat, 2072 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14201 SdHoareTripleChecker+Valid, 4783 SdHoareTripleChecker+Invalid, 5010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2072 IncrementalHoareTripleChecker+Valid, 2938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:09:33,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14201 Valid, 4783 Invalid, 5010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2072 Valid, 2938 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-10-16 10:09:33,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30566 states. [2022-10-16 10:09:34,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30566 to 3231. [2022-10-16 10:09:34,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3231 states, 3027 states have (on average 1.3581103402708952) internal successors, (4111), 3037 states have internal predecessors, (4111), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2022-10-16 10:09:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3231 states to 3231 states and 4495 transitions. [2022-10-16 10:09:34,492 INFO L78 Accepts]: Start accepts. Automaton has 3231 states and 4495 transitions. Word has length 185 [2022-10-16 10:09:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:09:34,493 INFO L495 AbstractCegarLoop]: Abstraction has 3231 states and 4495 transitions. [2022-10-16 10:09:34,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 2.49618320610687) internal successors, (327), 131 states have internal predecessors, (327), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 10:09:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 3231 states and 4495 transitions. [2022-10-16 10:09:34,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2022-10-16 10:09:34,499 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:09:34,500 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 5, 5, 5, 5, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:09:34,550 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 10:09:34,713 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,SelfDestructingSolverStorable17 [2022-10-16 10:09:34,713 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-16 10:09:34,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:09:34,714 INFO L85 PathProgramCache]: Analyzing trace with hash -2136870324, now seen corresponding path program 1 times [2022-10-16 10:09:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:09:34,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979000343] [2022-10-16 10:09:34,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:34,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:09:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:35,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-10-16 10:09:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 7937 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 7932 trivial. 0 not checked. [2022-10-16 10:09:35,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:09:35,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979000343] [2022-10-16 10:09:35,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979000343] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:09:35,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258815976] [2022-10-16 10:09:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:09:35,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:09:35,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:09:35,148 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 10:09:35,166 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 10:09:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:09:35,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:09:35,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:09:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 7937 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-16 10:09:41,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:09:56,304 INFO L134 CoverageAnalysis]: Checked inductivity of 7937 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-16 10:09:56,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258815976] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:09:56,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:09:56,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 129, 129] total 259 [2022-10-16 10:09:56,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707613385] [2022-10-16 10:09:56,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:09:56,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 259 states [2022-10-16 10:09:56,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:09:56,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 259 interpolants. [2022-10-16 10:09:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16518, Invalid=50304, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:09:56,323 INFO L87 Difference]: Start difference. First operand 3231 states and 4495 transitions. Second operand has 259 states, 259 states have (on average 2.2548262548262548) internal successors, (584), 259 states have internal predecessors, (584), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)