/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/reducercommutativity/rangesum.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:53:22,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:53:22,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:53:22,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:53:22,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:53:22,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:53:22,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:53:22,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:53:22,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:53:22,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:53:22,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:53:22,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:53:22,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:53:22,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:53:23,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:53:23,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:53:23,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:53:23,009 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:53:23,013 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:53:23,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:53:23,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:53:23,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:53:23,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:53:23,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:53:23,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 14:53:23,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:53:23,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:53:23,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:53:23,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:53:23,117 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:53:23,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:53:23,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:53:23,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:53:23,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:53:23,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:53:23,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:53:23,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:53:23,124 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:53:23,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:53:23,126 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:53:23,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:53:23,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:53:23,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:53:23,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:53:23,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:53:23,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:53:23,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:53:23,128 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:53:23,128 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:53:23,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:53:23,128 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:53:23,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:53:23,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:53:23,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:53:23,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:53:23,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:53:23,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:53:23,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:53:23,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:53:23,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:53:23,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:53:23,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:53:23,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:53:23,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:53:23,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:53:23,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:53:23,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:53:23,591 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:53:23,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/rangesum.i [2022-10-16 14:53:23,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f20b98c/662ef43b45a94f9885ddc24e93c2591b/FLAG428bfffc0 [2022-10-16 14:53:24,330 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:53:24,331 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/rangesum.i [2022-10-16 14:53:24,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f20b98c/662ef43b45a94f9885ddc24e93c2591b/FLAG428bfffc0 [2022-10-16 14:53:24,656 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98f20b98c/662ef43b45a94f9885ddc24e93c2591b [2022-10-16 14:53:24,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:53:24,668 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:53:24,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:53:24,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:53:24,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:53:24,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:24,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f43ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24, skipping insertion in model container [2022-10-16 14:53:24,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:24,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:53:24,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:53:24,929 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2022-10-16 14:53:24,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:53:24,940 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:53:24,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/rangesum.i[1544,1557] [2022-10-16 14:53:24,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:53:24,987 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:53:24,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24 WrapperNode [2022-10-16 14:53:24,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:53:24,989 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:53:24,989 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:53:24,989 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:53:24,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,044 INFO L138 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2022-10-16 14:53:25,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:53:25,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:53:25,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:53:25,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:53:25,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,076 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:53:25,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:53:25,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:53:25,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:53:25,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (1/1) ... [2022-10-16 14:53:25,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:53:25,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:25,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:53:25,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:53:25,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:53:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:53:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:53:25,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:53:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:53:25,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:53:25,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:53:25,220 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2022-10-16 14:53:25,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2022-10-16 14:53:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:53:25,380 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:53:25,383 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:53:25,864 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:53:25,879 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:53:25,880 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 14:53:25,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:53:25 BoogieIcfgContainer [2022-10-16 14:53:25,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:53:25,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:53:25,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:53:25,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:53:25,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:53:24" (1/3) ... [2022-10-16 14:53:25,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b5eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:53:25, skipping insertion in model container [2022-10-16 14:53:25,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:53:24" (2/3) ... [2022-10-16 14:53:25,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b5eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:53:25, skipping insertion in model container [2022-10-16 14:53:25,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:53:25" (3/3) ... [2022-10-16 14:53:25,919 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum.i [2022-10-16 14:53:25,945 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:53:25,945 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-16 14:53:26,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:53:26,067 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;@2d78a938, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:53:26,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-16 14:53:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 62 states have internal predecessors, (72), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 14:53:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 14:53:26,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:26,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 14:53:26,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:26,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:26,110 INFO L85 PathProgramCache]: Analyzing trace with hash 889512652, now seen corresponding path program 1 times [2022-10-16 14:53:26,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:26,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200704494] [2022-10-16 14:53:26,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:26,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:26,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:26,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:26,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200704494] [2022-10-16 14:53:26,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200704494] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:26,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:53:26,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:53:26,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283744388] [2022-10-16 14:53:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:26,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:53:26,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:26,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:53:26,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:53:26,707 INFO L87 Difference]: Start difference. First operand has 67 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 62 states have internal predecessors, (72), 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 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:26,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:26,876 INFO L93 Difference]: Finished difference Result 162 states and 194 transitions. [2022-10-16 14:53:26,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:53:26,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-10-16 14:53:26,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:26,893 INFO L225 Difference]: With dead ends: 162 [2022-10-16 14:53:26,894 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 14:53:26,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:53:26,906 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 32 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:26,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 216 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:53:26,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 14:53:26,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 64. [2022-10-16 14:53:26,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 40 states have (on average 1.65) internal successors, (66), 60 states have internal predecessors, (66), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:26,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2022-10-16 14:53:26,993 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 6 [2022-10-16 14:53:26,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:26,993 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2022-10-16 14:53:26,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:26,995 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2022-10-16 14:53:26,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:53:26,997 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:26,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:26,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:53:26,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting rangesumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:26,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:27,000 INFO L85 PathProgramCache]: Analyzing trace with hash -523589085, now seen corresponding path program 1 times [2022-10-16 14:53:27,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:27,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207936799] [2022-10-16 14:53:27,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:27,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:27,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:27,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207936799] [2022-10-16 14:53:27,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207936799] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:27,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:53:27,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:53:27,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972420215] [2022-10-16 14:53:27,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:27,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:53:27,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:27,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:53:27,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:53:27,145 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:27,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:27,204 INFO L93 Difference]: Finished difference Result 115 states and 127 transitions. [2022-10-16 14:53:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:53:27,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 14:53:27,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:27,206 INFO L225 Difference]: With dead ends: 115 [2022-10-16 14:53:27,207 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 14:53:27,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:53:27,210 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 3 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:27,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 105 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:53:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 14:53:27,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-10-16 14:53:27,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 40 states have (on average 1.625) internal successors, (65), 60 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:27,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2022-10-16 14:53:27,228 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 9 [2022-10-16 14:53:27,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:27,228 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2022-10-16 14:53:27,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:27,229 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2022-10-16 14:53:27,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:53:27,230 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:27,230 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:27,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:53:27,230 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:27,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:27,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1894413816, now seen corresponding path program 1 times [2022-10-16 14:53:27,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:27,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345429455] [2022-10-16 14:53:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:27,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:27,376 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:27,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:27,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345429455] [2022-10-16 14:53:27,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345429455] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:27,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379908308] [2022-10-16 14:53:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:27,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:27,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:27,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:27,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:53:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:27,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:53:27,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:27,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:27,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:27,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:27,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379908308] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:27,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:27,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:53:27,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352147131] [2022-10-16 14:53:27,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:27,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:53:27,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:27,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:53:27,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:53:27,572 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:27,728 INFO L93 Difference]: Finished difference Result 152 states and 172 transitions. [2022-10-16 14:53:27,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:53:27,729 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 14:53:27,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:27,731 INFO L225 Difference]: With dead ends: 152 [2022-10-16 14:53:27,731 INFO L226 Difference]: Without dead ends: 151 [2022-10-16 14:53:27,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:53:27,734 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 137 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:27,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 379 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:53:27,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-10-16 14:53:27,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 75. [2022-10-16 14:53:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.588235294117647) internal successors, (81), 71 states have internal predecessors, (81), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 86 transitions. [2022-10-16 14:53:27,748 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 86 transitions. Word has length 10 [2022-10-16 14:53:27,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:27,748 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 86 transitions. [2022-10-16 14:53:27,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:27,749 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 86 transitions. [2022-10-16 14:53:27,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 14:53:27,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:27,750 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:53:27,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:27,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:27,964 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:27,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:27,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1402713897, now seen corresponding path program 1 times [2022-10-16 14:53:27,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:27,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358922988] [2022-10-16 14:53:27,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:27,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:28,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:28,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358922988] [2022-10-16 14:53:28,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358922988] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:28,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128664944] [2022-10-16 14:53:28,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:28,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:28,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:28,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:28,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:53:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:28,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:53:28,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:28,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:28,164 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:53:28,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128664944] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:28,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:53:28,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:53:28,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907204084] [2022-10-16 14:53:28,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:28,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:53:28,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:28,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:53:28,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:53:28,176 INFO L87 Difference]: Start difference. First operand 75 states and 86 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:28,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:28,232 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2022-10-16 14:53:28,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:53:28,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2022-10-16 14:53:28,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:28,238 INFO L225 Difference]: With dead ends: 75 [2022-10-16 14:53:28,239 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:53:28,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:53:28,243 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 53 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:28,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 209 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:53:28,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:53:28,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-16 14:53:28,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 70 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:28,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2022-10-16 14:53:28,276 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 83 transitions. Word has length 11 [2022-10-16 14:53:28,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:28,276 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 83 transitions. [2022-10-16 14:53:28,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:28,277 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 83 transitions. [2022-10-16 14:53:28,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:53:28,278 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:28,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:28,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:28,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 14:53:28,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting rangesumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:28,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:28,495 INFO L85 PathProgramCache]: Analyzing trace with hash -658511513, now seen corresponding path program 1 times [2022-10-16 14:53:28,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:28,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897113649] [2022-10-16 14:53:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:28,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:28,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897113649] [2022-10-16 14:53:28,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897113649] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:28,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459774748] [2022-10-16 14:53:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:28,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:28,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:28,606 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:28,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:53:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:28,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:53:28,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:28,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:28,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:28,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:28,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459774748] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:28,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:28,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:53:28,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388926730] [2022-10-16 14:53:28,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:28,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:53:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:28,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:53:28,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:53:28,784 INFO L87 Difference]: Start difference. First operand 74 states and 83 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:28,886 INFO L93 Difference]: Finished difference Result 125 states and 139 transitions. [2022-10-16 14:53:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:53:28,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 14:53:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:28,888 INFO L225 Difference]: With dead ends: 125 [2022-10-16 14:53:28,888 INFO L226 Difference]: Without dead ends: 74 [2022-10-16 14:53:28,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:53:28,891 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 13 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:28,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 220 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:53:28,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-10-16 14:53:28,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-10-16 14:53:28,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 70 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:28,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 82 transitions. [2022-10-16 14:53:28,910 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 82 transitions. Word has length 13 [2022-10-16 14:53:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:28,910 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 82 transitions. [2022-10-16 14:53:28,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:28,911 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 82 transitions. [2022-10-16 14:53:28,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 14:53:28,912 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:28,912 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:28,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:29,127 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 14:53:29,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting rangesumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:29,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1237051051, now seen corresponding path program 2 times [2022-10-16 14:53:29,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:29,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838116780] [2022-10-16 14:53:29,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:29,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:29,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:29,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838116780] [2022-10-16 14:53:29,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838116780] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238636653] [2022-10-16 14:53:29,304 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:53:29,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:29,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:29,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:29,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:53:29,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:53:29,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:53:29,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:53:29,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:29,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:29,479 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:53:29,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238636653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:29,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:53:29,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2022-10-16 14:53:29,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196065599] [2022-10-16 14:53:29,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:29,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:53:29,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:53:29,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:53:29,482 INFO L87 Difference]: Start difference. First operand 74 states and 82 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:29,533 INFO L93 Difference]: Finished difference Result 74 states and 82 transitions. [2022-10-16 14:53:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:53:29,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 14:53:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:29,536 INFO L225 Difference]: With dead ends: 74 [2022-10-16 14:53:29,536 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 14:53:29,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:53:29,538 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 99 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:29,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 44 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:53:29,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 14:53:29,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-10-16 14:53:29,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 51 states have (on average 1.392156862745098) internal successors, (71), 64 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:29,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions. [2022-10-16 14:53:29,559 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 17 [2022-10-16 14:53:29,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:29,559 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 76 transitions. [2022-10-16 14:53:29,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2022-10-16 14:53:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 14:53:29,561 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:29,561 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:29,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 14:53:29,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:29,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting rangesumErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:29,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:29,776 INFO L85 PathProgramCache]: Analyzing trace with hash -306124026, now seen corresponding path program 1 times [2022-10-16 14:53:29,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:29,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326598485] [2022-10-16 14:53:29,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:29,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:29,807 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 14:53:29,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13782307] [2022-10-16 14:53:29,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:29,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:29,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:29,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:29,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:53:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:29,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:53:29,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:29,882 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:29,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:53:29,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:29,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326598485] [2022-10-16 14:53:29,883 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 14:53:29,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13782307] [2022-10-16 14:53:29,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13782307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:29,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:53:29,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:53:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331059370] [2022-10-16 14:53:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:29,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:53:29,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:29,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:53:29,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:53:29,885 INFO L87 Difference]: Start difference. First operand 68 states and 76 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:29,915 INFO L93 Difference]: Finished difference Result 129 states and 149 transitions. [2022-10-16 14:53:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:53:29,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 14:53:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:29,919 INFO L225 Difference]: With dead ends: 129 [2022-10-16 14:53:29,919 INFO L226 Difference]: Without dead ends: 86 [2022-10-16 14:53:29,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:53:29,921 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 17 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:29,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 104 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:53:29,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-16 14:53:29,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 80. [2022-10-16 14:53:29,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 63 states have (on average 1.4126984126984128) internal successors, (89), 76 states have internal predecessors, (89), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:29,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2022-10-16 14:53:29,928 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 18 [2022-10-16 14:53:29,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:29,928 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2022-10-16 14:53:29,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:29,929 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2022-10-16 14:53:29,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 14:53:29,930 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:29,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:29,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 14:53:30,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:30,145 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:30,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:30,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2126392342, now seen corresponding path program 1 times [2022-10-16 14:53:30,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:30,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223867114] [2022-10-16 14:53:30,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:30,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:30,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:30,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223867114] [2022-10-16 14:53:30,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223867114] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:30,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:53:30,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:53:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881461946] [2022-10-16 14:53:30,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:30,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:53:30,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:30,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:53:30,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:53:30,308 INFO L87 Difference]: Start difference. First operand 80 states and 94 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:30,362 INFO L93 Difference]: Finished difference Result 144 states and 172 transitions. [2022-10-16 14:53:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:53:30,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 14:53:30,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:30,363 INFO L225 Difference]: With dead ends: 144 [2022-10-16 14:53:30,363 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 14:53:30,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:53:30,366 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 58 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:30,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 78 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:53:30,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 14:53:30,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 84. [2022-10-16 14:53:30,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 80 states have internal predecessors, (93), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:30,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2022-10-16 14:53:30,374 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 20 [2022-10-16 14:53:30,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:30,374 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2022-10-16 14:53:30,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:30,375 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2022-10-16 14:53:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 14:53:30,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:30,375 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:30,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:53:30,376 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting rangesumErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:30,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:30,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1493643110, now seen corresponding path program 1 times [2022-10-16 14:53:30,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:30,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621818565] [2022-10-16 14:53:30,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:30,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:30,433 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:30,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:30,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621818565] [2022-10-16 14:53:30,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621818565] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:30,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:53:30,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:53:30,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331047844] [2022-10-16 14:53:30,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:30,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:53:30,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:30,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:53:30,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:53:30,436 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:30,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:30,463 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2022-10-16 14:53:30,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:53:30,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 14:53:30,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:30,465 INFO L225 Difference]: With dead ends: 89 [2022-10-16 14:53:30,465 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 14:53:30,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:53:30,466 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 3 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:30,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 158 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:53:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 14:53:30,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-10-16 14:53:30,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.3714285714285714) internal successors, (96), 83 states have internal predecessors, (96), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:30,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2022-10-16 14:53:30,474 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 21 [2022-10-16 14:53:30,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:30,474 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2022-10-16 14:53:30,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:30,474 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2022-10-16 14:53:30,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 14:53:30,475 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:30,475 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 14:53:30,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:53:30,476 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1716489148, now seen corresponding path program 2 times [2022-10-16 14:53:30,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:30,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059070330] [2022-10-16 14:53:30,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:30,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:30,643 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:30,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:30,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059070330] [2022-10-16 14:53:30,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059070330] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:30,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308900729] [2022-10-16 14:53:30,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:53:30,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:30,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:30,646 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:30,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:53:30,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:53:30,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:53:30,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:53:30,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:53:30,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 14:53:30,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308900729] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:30,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:30,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 14:53:30,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890875505] [2022-10-16 14:53:30,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:30,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 14:53:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:30,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 14:53:30,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:53:30,834 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 14:53:31,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:31,166 INFO L93 Difference]: Finished difference Result 173 states and 202 transitions. [2022-10-16 14:53:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:53:31,167 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 22 [2022-10-16 14:53:31,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:31,169 INFO L225 Difference]: With dead ends: 173 [2022-10-16 14:53:31,169 INFO L226 Difference]: Without dead ends: 172 [2022-10-16 14:53:31,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 14:53:31,170 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 248 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:31,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 264 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:53:31,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-10-16 14:53:31,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 76. [2022-10-16 14:53:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 72 states have internal predecessors, (83), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2022-10-16 14:53:31,179 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 22 [2022-10-16 14:53:31,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:31,180 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2022-10-16 14:53:31,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 15 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 14:53:31,180 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2022-10-16 14:53:31,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 14:53:31,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:31,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:31,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:31,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:31,395 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:31,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:31,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1519855015, now seen corresponding path program 1 times [2022-10-16 14:53:31,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:31,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768784063] [2022-10-16 14:53:31,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:31,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:31,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:31,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768784063] [2022-10-16 14:53:31,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768784063] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:31,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739882838] [2022-10-16 14:53:31,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:31,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:31,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:31,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:31,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:53:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:31,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:53:31,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:31,756 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:31,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:32,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:32,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739882838] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:32,104 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:32,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 14:53:32,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313833007] [2022-10-16 14:53:32,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:32,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 14:53:32,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:32,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 14:53:32,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:53:32,109 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:32,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:32,284 INFO L93 Difference]: Finished difference Result 152 states and 178 transitions. [2022-10-16 14:53:32,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:53:32,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 14:53:32,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:32,286 INFO L225 Difference]: With dead ends: 152 [2022-10-16 14:53:32,286 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 14:53:32,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:53:32,289 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 88 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:32,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 114 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:53:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 14:53:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 80. [2022-10-16 14:53:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 64 states have (on average 1.359375) internal successors, (87), 76 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:32,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 92 transitions. [2022-10-16 14:53:32,298 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 92 transitions. Word has length 27 [2022-10-16 14:53:32,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:32,299 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 92 transitions. [2022-10-16 14:53:32,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:32,299 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 92 transitions. [2022-10-16 14:53:32,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 14:53:32,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:32,300 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:32,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:32,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:32,514 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting rangesumErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:32,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:32,515 INFO L85 PathProgramCache]: Analyzing trace with hash -129124739, now seen corresponding path program 1 times [2022-10-16 14:53:32,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:32,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546760231] [2022-10-16 14:53:32,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:32,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:32,607 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:32,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:32,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546760231] [2022-10-16 14:53:32,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546760231] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:32,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073392017] [2022-10-16 14:53:32,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:32,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:32,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:32,609 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:32,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:53:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:32,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:53:32,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:32,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:32,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:32,764 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:32,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073392017] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:32,765 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:32,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 14:53:32,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765834172] [2022-10-16 14:53:32,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:32,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:53:32,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:32,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:53:32,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:53:32,767 INFO L87 Difference]: Start difference. First operand 80 states and 92 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:32,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:32,893 INFO L93 Difference]: Finished difference Result 140 states and 169 transitions. [2022-10-16 14:53:32,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 14:53:32,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 14:53:32,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:32,895 INFO L225 Difference]: With dead ends: 140 [2022-10-16 14:53:32,895 INFO L226 Difference]: Without dead ends: 139 [2022-10-16 14:53:32,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:53:32,896 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 59 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:32,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 366 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:53:32,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-10-16 14:53:32,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 117. [2022-10-16 14:53:32,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 101 states have (on average 1.396039603960396) internal successors, (141), 113 states have internal predecessors, (141), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 146 transitions. [2022-10-16 14:53:32,905 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 146 transitions. Word has length 28 [2022-10-16 14:53:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:32,905 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 146 transitions. [2022-10-16 14:53:32,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:32,906 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 146 transitions. [2022-10-16 14:53:32,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 14:53:32,906 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:32,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:32,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:33,121 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,SelfDestructingSolverStorable11 [2022-10-16 14:53:33,122 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting rangesumErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:33,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:33,123 INFO L85 PathProgramCache]: Analyzing trace with hash 292100521, now seen corresponding path program 1 times [2022-10-16 14:53:33,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:33,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341234431] [2022-10-16 14:53:33,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:33,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:33,207 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:33,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:33,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341234431] [2022-10-16 14:53:33,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341234431] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:33,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380200305] [2022-10-16 14:53:33,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:33,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:33,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:33,209 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:33,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:53:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:33,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:53:33,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:33,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:53:33,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380200305] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:53:33,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:53:33,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:53:33,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675632750] [2022-10-16 14:53:33,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:53:33,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:53:33,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:33,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:53:33,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:53:33,312 INFO L87 Difference]: Start difference. First operand 117 states and 146 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:33,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:33,351 INFO L93 Difference]: Finished difference Result 117 states and 146 transitions. [2022-10-16 14:53:33,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:53:33,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-10-16 14:53:33,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:33,353 INFO L225 Difference]: With dead ends: 117 [2022-10-16 14:53:33,353 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 14:53:33,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:53:33,354 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 24 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:33,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 166 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:53:33,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 14:53:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-10-16 14:53:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 101 states have (on average 1.3465346534653466) internal successors, (136), 112 states have internal predecessors, (136), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 14:53:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 141 transitions. [2022-10-16 14:53:33,362 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 141 transitions. Word has length 29 [2022-10-16 14:53:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:33,363 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 141 transitions. [2022-10-16 14:53:33,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 141 transitions. [2022-10-16 14:53:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 14:53:33,364 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:33,364 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:33,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:33,579 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,SelfDestructingSolverStorable12 [2022-10-16 14:53:33,580 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:33,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash 940758346, now seen corresponding path program 2 times [2022-10-16 14:53:33,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:33,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291807390] [2022-10-16 14:53:33,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:33,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 14:53:33,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:33,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291807390] [2022-10-16 14:53:33,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291807390] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:33,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242006875] [2022-10-16 14:53:33,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:53:33,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:33,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:33,831 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:33,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:53:33,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:53:33,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:53:33,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:53:33,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:34,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:34,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242006875] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:34,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:34,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 12] total 19 [2022-10-16 14:53:34,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041576514] [2022-10-16 14:53:34,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:34,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 14:53:34,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:34,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 14:53:34,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:53:34,335 INFO L87 Difference]: Start difference. First operand 116 states and 141 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:34,942 INFO L93 Difference]: Finished difference Result 345 states and 413 transitions. [2022-10-16 14:53:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 14:53:34,942 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-10-16 14:53:34,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:34,945 INFO L225 Difference]: With dead ends: 345 [2022-10-16 14:53:34,946 INFO L226 Difference]: Without dead ends: 243 [2022-10-16 14:53:34,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 51 SyntacticMatches, 9 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=234, Invalid=822, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 14:53:34,948 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 316 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:34,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 380 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:53:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-10-16 14:53:34,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 188. [2022-10-16 14:53:34,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 168 states have (on average 1.2976190476190477) internal successors, (218), 181 states have internal predecessors, (218), 6 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-10-16 14:53:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 230 transitions. [2022-10-16 14:53:34,966 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 230 transitions. Word has length 34 [2022-10-16 14:53:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:34,967 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 230 transitions. [2022-10-16 14:53:34,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 230 transitions. [2022-10-16 14:53:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 14:53:34,969 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:34,969 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:35,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:35,183 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,SelfDestructingSolverStorable13 [2022-10-16 14:53:35,184 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:35,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:35,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1494447482, now seen corresponding path program 3 times [2022-10-16 14:53:35,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:35,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301167481] [2022-10-16 14:53:35,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:36,304 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:53:36,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:36,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301167481] [2022-10-16 14:53:36,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301167481] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:36,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037746560] [2022-10-16 14:53:36,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:53:36,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:36,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:36,306 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:36,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:53:36,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 14:53:36,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:53:36,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-16 14:53:36,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:36,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 14:53:37,550 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 14:53:37,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-10-16 14:53:37,595 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:37,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:38,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2022-10-16 14:53:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:53:39,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037746560] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:39,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:39,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2022-10-16 14:53:39,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950855597] [2022-10-16 14:53:39,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:39,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 14:53:39,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:39,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 14:53:39,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=1637, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 14:53:39,389 INFO L87 Difference]: Start difference. First operand 188 states and 230 transitions. Second operand has 43 states, 42 states have (on average 2.261904761904762) internal successors, (95), 40 states have internal predecessors, (95), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:42,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:42,059 INFO L93 Difference]: Finished difference Result 295 states and 357 transitions. [2022-10-16 14:53:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-16 14:53:42,060 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.261904761904762) internal successors, (95), 40 states have internal predecessors, (95), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 14:53:42,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:42,062 INFO L225 Difference]: With dead ends: 295 [2022-10-16 14:53:42,063 INFO L226 Difference]: Without dead ends: 294 [2022-10-16 14:53:42,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=492, Invalid=3798, Unknown=0, NotChecked=0, Total=4290 [2022-10-16 14:53:42,066 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 56 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 320 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:42,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 460 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 320 Unchecked, 0.1s Time] [2022-10-16 14:53:42,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-10-16 14:53:42,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 251. [2022-10-16 14:53:42,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 230 states have (on average 1.2608695652173914) internal successors, (290), 242 states have internal predecessors, (290), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-10-16 14:53:42,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 305 transitions. [2022-10-16 14:53:42,089 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 305 transitions. Word has length 38 [2022-10-16 14:53:42,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:42,089 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 305 transitions. [2022-10-16 14:53:42,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.261904761904762) internal successors, (95), 40 states have internal predecessors, (95), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:42,090 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 305 transitions. [2022-10-16 14:53:42,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 14:53:42,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:42,091 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:42,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:42,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:53:42,305 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting rangesumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:42,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:42,306 INFO L85 PathProgramCache]: Analyzing trace with hash 916768436, now seen corresponding path program 1 times [2022-10-16 14:53:42,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:42,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618831912] [2022-10-16 14:53:42,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:42,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:43,442 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-16 14:53:43,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:53:43,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618831912] [2022-10-16 14:53:43,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618831912] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:53:43,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716460670] [2022-10-16 14:53:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:43,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:43,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:43,444 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:43,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 14:53:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:43,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 14:53:43,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:43,715 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 14:53:44,090 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2022-10-16 14:53:44,142 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:44,143 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:44,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2022-10-16 14:53:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:53:44,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716460670] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:53:44,822 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:53:44,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2022-10-16 14:53:44,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351572456] [2022-10-16 14:53:44,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:53:44,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-10-16 14:53:44,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:53:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-10-16 14:53:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1695, Unknown=0, NotChecked=0, Total=1806 [2022-10-16 14:53:44,825 INFO L87 Difference]: Start difference. First operand 251 states and 305 transitions. Second operand has 43 states, 42 states have (on average 2.5238095238095237) internal successors, (106), 40 states have internal predecessors, (106), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:49,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:53:49,992 INFO L93 Difference]: Finished difference Result 769 states and 925 transitions. [2022-10-16 14:53:49,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-10-16 14:53:49,993 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.5238095238095237) internal successors, (106), 40 states have internal predecessors, (106), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-10-16 14:53:49,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:53:49,997 INFO L225 Difference]: With dead ends: 769 [2022-10-16 14:53:49,997 INFO L226 Difference]: Without dead ends: 572 [2022-10-16 14:53:50,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=487, Invalid=5675, Unknown=0, NotChecked=0, Total=6162 [2022-10-16 14:53:50,003 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 347 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 2448 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:53:50,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1194 Invalid, 2518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2448 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-16 14:53:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-10-16 14:53:50,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 482. [2022-10-16 14:53:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 454 states have (on average 1.2356828193832599) internal successors, (561), 465 states have internal predecessors, (561), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2022-10-16 14:53:50,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 583 transitions. [2022-10-16 14:53:50,051 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 583 transitions. Word has length 39 [2022-10-16 14:53:50,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:53:50,051 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 583 transitions. [2022-10-16 14:53:50,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.5238095238095237) internal successors, (106), 40 states have internal predecessors, (106), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:53:50,052 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 583 transitions. [2022-10-16 14:53:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-16 14:53:50,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:53:50,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:53:50,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 14:53:50,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 14:53:50,269 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting rangesumErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:53:50,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:53:50,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1067946911, now seen corresponding path program 1 times [2022-10-16 14:53:50,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:53:50,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431564706] [2022-10-16 14:53:50,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:50,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:53:50,301 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 14:53:50,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [428783223] [2022-10-16 14:53:50,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:53:50,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:53:50,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:53:50,303 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:53:50,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 14:53:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:53:50,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:53:50,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:53:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 14:53:50,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:53:53,460 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_rangesum_~cnt~0 1))) (let ((.cse2 (< .cse0 0)) (.cse1 (+ |c_rangesum_#t~mem4| c_rangesum_~ret~0))) (and (forall ((v_rangesum_~ret~0_19 Int)) (or (<= (div v_rangesum_~ret~0_19 .cse0) 9223372036854775808) (< .cse1 v_rangesum_~ret~0_19))) (forall ((v_rangesum_~ret~0_19 Int)) (or (not (= (mod v_rangesum_~ret~0_19 .cse0) 0)) (<= (div v_rangesum_~ret~0_19 .cse0) 9223372036854775807) (not (<= v_rangesum_~ret~0_19 .cse1)))) (or (forall ((v_rangesum_~ret~0_19 Int)) (or (< .cse1 v_rangesum_~ret~0_19) (<= (div v_rangesum_~ret~0_19 .cse0) 9223372036854775807))) .cse2) (forall ((v_rangesum_~ret~0_19 Int)) (or (<= (div v_rangesum_~ret~0_19 .cse0) 9223372036854775808) (= (mod v_rangesum_~ret~0_19 .cse0) 0) (< .cse1 v_rangesum_~ret~0_19) (<= 0 v_rangesum_~ret~0_19))) (or .cse2 (forall ((v_rangesum_~ret~0_19 Int)) (or (= (mod v_rangesum_~ret~0_19 .cse0) 0) (<= (div v_rangesum_~ret~0_19 .cse0) 9223372036854775806) (not (< v_rangesum_~ret~0_19 0)) (not (<= v_rangesum_~ret~0_19 .cse1)))))))) is different from false [2022-10-16 14:54:13,666 WARN L233 SmtUtils]: Spent 16.21s on a formula simplification. DAG size of input: 31 DAG size of output: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 14:54:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 14:54:14,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:54:14,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431564706] [2022-10-16 14:54:14,696 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 14:54:14,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428783223] [2022-10-16 14:54:14,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428783223] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:54:14,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 14:54:14,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 14:54:14,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209687746] [2022-10-16 14:54:14,696 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 14:54:14,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:54:14,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:54:14,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:54:14,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=49, Unknown=1, NotChecked=14, Total=90 [2022-10-16 14:54:14,698 INFO L87 Difference]: Start difference. First operand 482 states and 583 transitions. Second operand has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:27,994 WARN L233 SmtUtils]: Spent 13.02s on a formula simplification. DAG size of input: 40 DAG size of output: 21 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 14:54:29,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:54:29,827 INFO L93 Difference]: Finished difference Result 1014 states and 1275 transitions. [2022-10-16 14:54:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:54:29,828 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-16 14:54:29,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:54:29,833 INFO L225 Difference]: With dead ends: 1014 [2022-10-16 14:54:29,833 INFO L226 Difference]: Without dead ends: 638 [2022-10-16 14:54:29,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 37.1s TimeCoverageRelationStatistics Valid=50, Invalid=109, Unknown=1, NotChecked=22, Total=182 [2022-10-16 14:54:29,835 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 99 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:54:29,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 350 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 71 Unchecked, 0.6s Time] [2022-10-16 14:54:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-10-16 14:54:29,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 576. [2022-10-16 14:54:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 548 states have (on average 1.260948905109489) internal successors, (691), 559 states have internal predecessors, (691), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2022-10-16 14:54:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 713 transitions. [2022-10-16 14:54:29,892 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 713 transitions. Word has length 47 [2022-10-16 14:54:29,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:54:29,892 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 713 transitions. [2022-10-16 14:54:29,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:29,892 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 713 transitions. [2022-10-16 14:54:29,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-16 14:54:29,893 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:54:29,893 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:54:29,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 14:54:30,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:54:30,095 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting rangesumErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:54:30,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:54:30,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1253384271, now seen corresponding path program 1 times [2022-10-16 14:54:30,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:54:30,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805387788] [2022-10-16 14:54:30,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:54:30,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:54:30,110 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 14:54:30,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1023941166] [2022-10-16 14:54:30,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:54:30,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:54:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:54:30,112 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:54:30,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 14:54:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:54:30,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 14:54:30,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:54:30,574 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 14:54:30,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:54:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 14:54:33,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:54:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805387788] [2022-10-16 14:54:33,075 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 14:54:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023941166] [2022-10-16 14:54:33,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023941166] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:54:33,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 14:54:33,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 14:54:33,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594046468] [2022-10-16 14:54:33,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 14:54:33,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:54:33,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:54:33,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:54:33,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:54:33,077 INFO L87 Difference]: Start difference. First operand 576 states and 713 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:34,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:54:34,138 INFO L93 Difference]: Finished difference Result 653 states and 812 transitions. [2022-10-16 14:54:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:54:34,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-16 14:54:34,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:54:34,148 INFO L225 Difference]: With dead ends: 653 [2022-10-16 14:54:34,149 INFO L226 Difference]: Without dead ends: 644 [2022-10-16 14:54:34,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:54:34,150 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 92 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:54:34,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 274 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 20 Unchecked, 0.6s Time] [2022-10-16 14:54:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2022-10-16 14:54:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 569. [2022-10-16 14:54:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 541 states have (on average 1.2365988909426988) internal successors, (669), 552 states have internal predecessors, (669), 10 states have call successors, (10), 9 states have call predecessors, (10), 7 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2022-10-16 14:54:34,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 691 transitions. [2022-10-16 14:54:34,212 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 691 transitions. Word has length 48 [2022-10-16 14:54:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:54:34,212 INFO L495 AbstractCegarLoop]: Abstraction has 569 states and 691 transitions. [2022-10-16 14:54:34,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:34,212 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 691 transitions. [2022-10-16 14:54:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 14:54:34,213 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:54:34,213 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:54:34,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 14:54:34,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:54:34,429 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting rangesumErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:54:34,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:54:34,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1612182054, now seen corresponding path program 2 times [2022-10-16 14:54:34,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:54:34,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869497915] [2022-10-16 14:54:34,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:54:34,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:54:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:54:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-16 14:54:34,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:54:34,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869497915] [2022-10-16 14:54:34,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869497915] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:54:34,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688263208] [2022-10-16 14:54:34,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:54:34,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:54:34,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:54:34,913 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:54:34,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 14:54:34,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:54:34,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:54:34,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:54:34,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:54:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 14:54:35,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:54:35,857 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 14:54:35,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688263208] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:54:35,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:54:35,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 12 [2022-10-16 14:54:35,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910886962] [2022-10-16 14:54:35,858 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:54:35,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 14:54:35,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:54:35,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 14:54:35,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-10-16 14:54:35,860 INFO L87 Difference]: Start difference. First operand 569 states and 691 transitions. Second operand has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:54:37,440 INFO L93 Difference]: Finished difference Result 620 states and 744 transitions. [2022-10-16 14:54:37,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 14:54:37,441 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-16 14:54:37,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:54:37,444 INFO L225 Difference]: With dead ends: 620 [2022-10-16 14:54:37,445 INFO L226 Difference]: Without dead ends: 543 [2022-10-16 14:54:37,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 92 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:54:37,446 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 114 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:54:37,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 378 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 14:54:37,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2022-10-16 14:54:37,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 419. [2022-10-16 14:54:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 393 states have (on average 1.2162849872773538) internal successors, (478), 403 states have internal predecessors, (478), 9 states have call successors, (9), 8 states have call predecessors, (9), 7 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2022-10-16 14:54:37,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 499 transitions. [2022-10-16 14:54:37,507 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 499 transitions. Word has length 49 [2022-10-16 14:54:37,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:54:37,507 INFO L495 AbstractCegarLoop]: Abstraction has 419 states and 499 transitions. [2022-10-16 14:54:37,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:37,508 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 499 transitions. [2022-10-16 14:54:37,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 14:54:37,509 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:54:37,509 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:54:37,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 14:54:37,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:54:37,724 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:54:37,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:54:37,725 INFO L85 PathProgramCache]: Analyzing trace with hash 201222789, now seen corresponding path program 1 times [2022-10-16 14:54:37,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:54:37,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944253324] [2022-10-16 14:54:37,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:54:37,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:54:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:54:38,824 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 11 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:54:38,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:54:38,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944253324] [2022-10-16 14:54:38,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944253324] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:54:38,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35374740] [2022-10-16 14:54:38,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:54:38,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:54:38,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:54:38,826 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:54:38,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 14:54:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:54:38,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 14:54:38,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:54:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:54:40,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:54:41,234 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:54:41,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35374740] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:54:41,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:54:41,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 29 [2022-10-16 14:54:41,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744316171] [2022-10-16 14:54:41,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:54:41,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 14:54:41,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:54:41,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 14:54:41,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2022-10-16 14:54:41,239 INFO L87 Difference]: Start difference. First operand 419 states and 499 transitions. Second operand has 29 states, 29 states have (on average 3.310344827586207) internal successors, (96), 29 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:43,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:54:43,495 INFO L93 Difference]: Finished difference Result 634 states and 738 transitions. [2022-10-16 14:54:43,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 14:54:43,495 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.310344827586207) internal successors, (96), 29 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-16 14:54:43,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:54:43,498 INFO L225 Difference]: With dead ends: 634 [2022-10-16 14:54:43,498 INFO L226 Difference]: Without dead ends: 396 [2022-10-16 14:54:43,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 74 SyntacticMatches, 12 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=217, Invalid=1189, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 14:54:43,500 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 161 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:54:43,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 565 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 14:54:43,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-10-16 14:54:43,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 372. [2022-10-16 14:54:43,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 348 states have (on average 1.1925287356321839) internal successors, (415), 356 states have internal predecessors, (415), 9 states have call successors, (9), 8 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2022-10-16 14:54:43,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 433 transitions. [2022-10-16 14:54:43,535 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 433 transitions. Word has length 49 [2022-10-16 14:54:43,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:54:43,536 INFO L495 AbstractCegarLoop]: Abstraction has 372 states and 433 transitions. [2022-10-16 14:54:43,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.310344827586207) internal successors, (96), 29 states have internal predecessors, (96), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:54:43,536 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 433 transitions. [2022-10-16 14:54:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-16 14:54:43,537 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:54:43,537 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:54:43,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 14:54:43,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:54:43,751 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:54:43,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:54:43,752 INFO L85 PathProgramCache]: Analyzing trace with hash 736163023, now seen corresponding path program 4 times [2022-10-16 14:54:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:54:43,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234673246] [2022-10-16 14:54:43,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:54:43,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:54:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:54:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:54:50,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:54:50,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234673246] [2022-10-16 14:54:50,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234673246] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:54:50,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900851771] [2022-10-16 14:54:50,546 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 14:54:50,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:54:50,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:54:50,547 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:54:50,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 14:54:50,614 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 14:54:50,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:54:50,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 41 conjunts are in the unsatisfiable core [2022-10-16 14:54:50,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:54:52,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 14:54:57,135 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 14:54:57,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2022-10-16 14:54:57,491 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 15 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:54:57,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:04,000 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2022-10-16 14:55:07,637 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:07,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900851771] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:07,637 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:07,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 21] total 63 [2022-10-16 14:55:07,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68552290] [2022-10-16 14:55:07,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:07,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-16 14:55:07,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:07,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-16 14:55:07,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=3755, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 14:55:07,641 INFO L87 Difference]: Start difference. First operand 372 states and 433 transitions. Second operand has 64 states, 63 states have (on average 2.2222222222222223) internal successors, (140), 61 states have internal predecessors, (140), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:21,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:55:21,276 INFO L93 Difference]: Finished difference Result 424 states and 492 transitions. [2022-10-16 14:55:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-10-16 14:55:21,283 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.2222222222222223) internal successors, (140), 61 states have internal predecessors, (140), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-16 14:55:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:55:21,286 INFO L225 Difference]: With dead ends: 424 [2022-10-16 14:55:21,286 INFO L226 Difference]: Without dead ends: 423 [2022-10-16 14:55:21,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1524 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=639, Invalid=7733, Unknown=0, NotChecked=0, Total=8372 [2022-10-16 14:55:21,290 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 27 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 254 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:55:21,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 737 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 439 Invalid, 0 Unknown, 254 Unchecked, 1.7s Time] [2022-10-16 14:55:21,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-10-16 14:55:21,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 405. [2022-10-16 14:55:21,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 380 states have (on average 1.1894736842105262) internal successors, (452), 388 states have internal predecessors, (452), 10 states have call successors, (10), 9 states have call predecessors, (10), 5 states have return successors, (11), 7 states have call predecessors, (11), 8 states have call successors, (11) [2022-10-16 14:55:21,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 473 transitions. [2022-10-16 14:55:21,338 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 473 transitions. Word has length 49 [2022-10-16 14:55:21,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:55:21,338 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 473 transitions. [2022-10-16 14:55:21,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.2222222222222223) internal successors, (140), 61 states have internal predecessors, (140), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:55:21,339 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 473 transitions. [2022-10-16 14:55:21,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 14:55:21,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:55:21,340 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:55:21,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 14:55:21,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:21,555 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting rangesumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:55:21,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:55:21,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1346217355, now seen corresponding path program 2 times [2022-10-16 14:55:21,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:55:21,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292898519] [2022-10-16 14:55:21,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:55:21,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:55:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:55:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:28,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:55:28,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292898519] [2022-10-16 14:55:28,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292898519] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:55:28,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779356820] [2022-10-16 14:55:28,597 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:55:28,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:55:28,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:55:28,598 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:55:28,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 14:55:28,661 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:55:28,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:55:28,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 42 conjunts are in the unsatisfiable core [2022-10-16 14:55:28,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:55:30,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 14:55:36,281 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 14:55:36,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 12 [2022-10-16 14:55:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 15 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:36,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:55:43,531 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 44 [2022-10-16 14:55:47,925 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:55:47,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779356820] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:55:47,925 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:55:47,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 21] total 63 [2022-10-16 14:55:47,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324484981] [2022-10-16 14:55:47,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:55:47,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-16 14:55:47,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:55:47,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-16 14:55:47,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=3764, Unknown=0, NotChecked=0, Total=4032 [2022-10-16 14:55:47,928 INFO L87 Difference]: Start difference. First operand 405 states and 473 transitions. Second operand has 64 states, 63 states have (on average 2.2698412698412698) internal successors, (143), 61 states have internal predecessors, (143), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:04,042 INFO L93 Difference]: Finished difference Result 423 states and 491 transitions. [2022-10-16 14:56:04,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 14:56:04,044 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.2698412698412698) internal successors, (143), 61 states have internal predecessors, (143), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-16 14:56:04,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:04,046 INFO L225 Difference]: With dead ends: 423 [2022-10-16 14:56:04,046 INFO L226 Difference]: Without dead ends: 422 [2022-10-16 14:56:04,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 63 SyntacticMatches, 3 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1403 ImplicationChecksByTransitivity, 33.5s TimeCoverageRelationStatistics Valid=625, Invalid=7385, Unknown=0, NotChecked=0, Total=8010 [2022-10-16 14:56:04,051 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 41 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 236 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:04,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 764 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 446 Invalid, 0 Unknown, 236 Unchecked, 1.9s Time] [2022-10-16 14:56:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-10-16 14:56:04,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 397. [2022-10-16 14:56:04,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 372 states have (on average 1.1881720430107527) internal successors, (442), 380 states have internal predecessors, (442), 10 states have call successors, (10), 9 states have call predecessors, (10), 5 states have return successors, (11), 7 states have call predecessors, (11), 8 states have call successors, (11) [2022-10-16 14:56:04,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 463 transitions. [2022-10-16 14:56:04,093 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 463 transitions. Word has length 50 [2022-10-16 14:56:04,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:04,093 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 463 transitions. [2022-10-16 14:56:04,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.2698412698412698) internal successors, (143), 61 states have internal predecessors, (143), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:04,094 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 463 transitions. [2022-10-16 14:56:04,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:56:04,095 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:04,095 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:04,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:04,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:04,309 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:56:04,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:04,310 INFO L85 PathProgramCache]: Analyzing trace with hash -267119159, now seen corresponding path program 2 times [2022-10-16 14:56:04,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:04,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416997136] [2022-10-16 14:56:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:04,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 24 proven. 37 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:56:05,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:05,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416997136] [2022-10-16 14:56:05,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416997136] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:05,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236892890] [2022-10-16 14:56:05,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:56:05,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:05,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:05,763 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:05,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 14:56:05,831 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:56:05,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:05,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 14:56:05,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 33 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:56:07,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:10,397 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 46 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 14:56:10,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236892890] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:10,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:10,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 36 [2022-10-16 14:56:10,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651789605] [2022-10-16 14:56:10,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:10,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 14:56:10,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:10,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 14:56:10,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=1038, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 14:56:10,400 INFO L87 Difference]: Start difference. First operand 397 states and 463 transitions. Second operand has 36 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 36 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:14,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:56:14,493 INFO L93 Difference]: Finished difference Result 669 states and 782 transitions. [2022-10-16 14:56:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 14:56:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 36 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 14:56:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:56:14,503 INFO L225 Difference]: With dead ends: 669 [2022-10-16 14:56:14,503 INFO L226 Difference]: Without dead ends: 451 [2022-10-16 14:56:14,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 81 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=379, Invalid=1691, Unknown=0, NotChecked=0, Total=2070 [2022-10-16 14:56:14,506 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 286 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:56:14,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 734 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-16 14:56:14,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2022-10-16 14:56:14,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 398. [2022-10-16 14:56:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 373 states have (on average 1.1742627345844503) internal successors, (438), 382 states have internal predecessors, (438), 10 states have call successors, (10), 8 states have call predecessors, (10), 5 states have return successors, (11), 7 states have call predecessors, (11), 8 states have call successors, (11) [2022-10-16 14:56:14,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 459 transitions. [2022-10-16 14:56:14,551 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 459 transitions. Word has length 53 [2022-10-16 14:56:14,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:56:14,551 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 459 transitions. [2022-10-16 14:56:14,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.9722222222222223) internal successors, (107), 36 states have internal predecessors, (107), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:14,552 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 459 transitions. [2022-10-16 14:56:14,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-16 14:56:14,553 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:56:14,553 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:56:14,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 14:56:14,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:14,769 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting rangesumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:56:14,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:56:14,770 INFO L85 PathProgramCache]: Analyzing trace with hash 267821075, now seen corresponding path program 5 times [2022-10-16 14:56:14,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:56:14,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451904284] [2022-10-16 14:56:14,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:56:14,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:56:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:56:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:20,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:56:20,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451904284] [2022-10-16 14:56:20,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451904284] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:56:20,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621976956] [2022-10-16 14:56:20,865 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 14:56:20,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:56:20,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:56:20,866 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:56:20,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 14:56:20,943 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-10-16 14:56:20,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:56:20,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 55 conjunts are in the unsatisfiable core [2022-10-16 14:56:20,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:56:22,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 14:56:23,183 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 14:56:23,183 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 14:56:25,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 14:56:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:56:26,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:56:31,319 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_init_nondet_~i~0#1_57| Int)) (or (forall ((v_ArrVal_333 Int)) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base|) (+ |c_ULTIMATE.start_init_nondet_~x#1.offset| (* |v_ULTIMATE.start_init_nondet_~i~0#1_57| 4)) v_ArrVal_333)) |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 12)) 9223372036854775808)) (not (<= (+ |c_ULTIMATE.start_init_nondet_#t~post1#1| 1) |v_ULTIMATE.start_init_nondet_~i~0#1_57|)))) is different from false [2022-10-16 14:56:33,372 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_init_nondet_~i~0#1_57| Int) (v_ArrVal_333 Int)) (or (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base|) (+ |c_ULTIMATE.start_init_nondet_~x#1.offset| (* |v_ULTIMATE.start_init_nondet_~i~0#1_57| 4)) v_ArrVal_333)) |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 12)) 9223372036854775808) (< |v_ULTIMATE.start_init_nondet_~i~0#1_57| (+ |c_ULTIMATE.start_init_nondet_~i~0#1| 1)))) is different from false [2022-10-16 14:56:33,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 102 [2022-10-16 14:56:35,994 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 12 not checked. [2022-10-16 14:56:35,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621976956] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:56:35,995 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:56:35,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 62 [2022-10-16 14:56:35,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828156792] [2022-10-16 14:56:35,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:56:35,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-10-16 14:56:35,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:56:35,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-10-16 14:56:35,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=3482, Unknown=2, NotChecked=238, Total=3906 [2022-10-16 14:56:35,998 INFO L87 Difference]: Start difference. First operand 398 states and 459 transitions. Second operand has 63 states, 62 states have (on average 2.4516129032258065) internal successors, (152), 60 states have internal predecessors, (152), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:56:41,167 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base|))) (and (<= (select .cse0 (+ |c_ULTIMATE.start_init_nondet_~x#1.offset| (* |c_ULTIMATE.start_init_nondet_~i~0#1| 4))) 2147483647) (= |c_ULTIMATE.start_main_~#x~0#1.base| |c_ULTIMATE.start_init_nondet_~x#1.base|) (<= 3 |c_ULTIMATE.start_init_nondet_~i~0#1|) (forall ((|v_ULTIMATE.start_init_nondet_~i~0#1_57| Int) (v_ArrVal_333 Int)) (or (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base| (store .cse0 (+ |c_ULTIMATE.start_init_nondet_~x#1.offset| (* |v_ULTIMATE.start_init_nondet_~i~0#1_57| 4)) v_ArrVal_333)) |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 12)) 9223372036854775808) (< |v_ULTIMATE.start_init_nondet_~i~0#1_57| (+ |c_ULTIMATE.start_init_nondet_~i~0#1| 1)))) (<= |c_ULTIMATE.start_init_nondet_~i~0#1| 3) (= |c_ULTIMATE.start_init_nondet_~x#1.offset| 0) (= |c_ULTIMATE.start_main_~#x~0#1.offset| 0))) is different from false [2022-10-16 14:56:43,210 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base|)) (.cse0 (= |c_ULTIMATE.start_main_~#x~0#1.base| |c_ULTIMATE.start_init_nondet_~x#1.base|)) (.cse2 (* 2 |c_ULTIMATE.start_init_nondet_#t~post1#1|))) (and .cse0 (forall ((|v_ULTIMATE.start_init_nondet_~i~0#1_57| Int)) (or (forall ((v_ArrVal_333 Int)) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_init_nondet_~x#1.base| (store .cse1 (+ |c_ULTIMATE.start_init_nondet_~x#1.offset| (* |v_ULTIMATE.start_init_nondet_~i~0#1_57| 4)) v_ArrVal_333)) |c_ULTIMATE.start_main_~#x~0#1.base|) (+ |c_ULTIMATE.start_main_~#x~0#1.offset| 12)) 9223372036854775808)) (not (<= (+ |c_ULTIMATE.start_init_nondet_#t~post1#1| 1) |v_ULTIMATE.start_init_nondet_~i~0#1_57|)))) (<= (select .cse1 (+ |c_ULTIMATE.start_init_nondet_~x#1.offset| 12)) 2147483647) (<= 3 |c_ULTIMATE.start_init_nondet_#t~post1#1|) (= |c_ULTIMATE.start_init_nondet_~x#1.offset| 0) (<= 6 .cse2) (or (and (<= (select .cse1 (+ .cse2 |c_ULTIMATE.start_init_nondet_~x#1.offset| 6)) 2147483647) .cse0) (< 6 .cse2)) (= |c_ULTIMATE.start_init_nondet_~x#1.offset| |c_ULTIMATE.start_main_~#x~0#1.offset|) (= |c_ULTIMATE.start_main_~#x~0#1.offset| 0))) is different from false [2022-10-16 14:57:08,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:57:08,098 INFO L93 Difference]: Finished difference Result 957 states and 1104 transitions. [2022-10-16 14:57:08,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-10-16 14:57:08,099 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.4516129032258065) internal successors, (152), 60 states have internal predecessors, (152), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-10-16 14:57:08,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:57:08,103 INFO L225 Difference]: With dead ends: 957 [2022-10-16 14:57:08,103 INFO L226 Difference]: Without dead ends: 753 [2022-10-16 14:57:08,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 90 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1180 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=452, Invalid=7216, Unknown=4, NotChecked=700, Total=8372 [2022-10-16 14:57:08,110 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 337 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 4703 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 5288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 4703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 532 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:57:08,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 3453 Invalid, 5288 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 4703 Invalid, 0 Unknown, 532 Unchecked, 17.6s Time] [2022-10-16 14:57:08,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2022-10-16 14:57:08,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 584. [2022-10-16 14:57:08,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 553 states have (on average 1.1772151898734178) internal successors, (651), 562 states have internal predecessors, (651), 13 states have call successors, (13), 11 states have call predecessors, (13), 8 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2022-10-16 14:57:08,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 678 transitions. [2022-10-16 14:57:08,200 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 678 transitions. Word has length 53 [2022-10-16 14:57:08,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:57:08,201 INFO L495 AbstractCegarLoop]: Abstraction has 584 states and 678 transitions. [2022-10-16 14:57:08,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.4516129032258065) internal successors, (152), 60 states have internal predecessors, (152), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:57:08,201 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 678 transitions. [2022-10-16 14:57:08,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 14:57:08,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:57:08,202 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:57:08,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 14:57:08,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-10-16 14:57:08,417 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting rangesumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 14:57:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:57:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash -287481145, now seen corresponding path program 3 times [2022-10-16 14:57:08,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:57:08,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326859005] [2022-10-16 14:57:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:57:08,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:57:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:57:14,524 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:57:14,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:57:14,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326859005] [2022-10-16 14:57:14,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326859005] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:57:14,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989809934] [2022-10-16 14:57:14,525 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:57:14,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:57:14,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:57:14,527 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:57:14,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 14:57:14,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 14:57:14,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:57:14,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 14:57:14,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:57:15,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 14:57:15,733 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29