/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-crafted/zero_sum_const_m5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:03:55,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:03:55,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:03:55,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:03:55,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:03:55,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:03:55,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:03:55,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:03:55,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:03:55,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:03:55,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:03:55,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:03:55,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:03:55,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:03:55,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:03:55,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:03:55,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:03:55,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:03:55,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:03:55,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:03:55,113 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:03:55,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:03:55,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:03:55,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:03:55,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:03:55,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:03:55,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:03:55,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:03:55,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:03:55,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:03:55,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:03:55,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:03:55,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:03:55,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:03:55,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:03:55,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:03:55,149 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:03:55,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:03:55,201 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:03:55,201 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:03:55,201 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:03:55,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:03:55,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:03:55,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:03:55,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:03:55,206 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:03:55,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:03:55,208 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:03:55,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:03:55,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:03:55,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:03:55,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:03:55,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:03:55,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:03:55,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:03:55,209 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:03:55,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:03:55,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:03:55,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:03:55,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:03:55,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:03:55,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:03:55,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:03:55,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:03:55,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:03:55,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:03:55,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:03:55,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:03:55,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:03:55,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:03:55,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:03:55,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:03:55,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:03:55,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:03:55,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:03:55,606 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:03:55,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_const_m5.c [2022-10-16 10:03:55,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c6872b8/ef9c3626c2044ab0bc94cc6c4132dda8/FLAG2be887262 [2022-10-16 10:03:56,267 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:03:56,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m5.c [2022-10-16 10:03:56,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c6872b8/ef9c3626c2044ab0bc94cc6c4132dda8/FLAG2be887262 [2022-10-16 10:03:56,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1c6872b8/ef9c3626c2044ab0bc94cc6c4132dda8 [2022-10-16 10:03:56,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:03:56,613 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:03:56,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:03:56,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:03:56,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:03:56,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:03:56" (1/1) ... [2022-10-16 10:03:56,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7de50a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:56, skipping insertion in model container [2022-10-16 10:03:56,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:03:56" (1/1) ... [2022-10-16 10:03:56,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:03:56,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:03:56,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m5.c[408,421] [2022-10-16 10:03:56,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:03:56,981 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:03:56,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_const_m5.c[408,421] [2022-10-16 10:03:57,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:03:57,029 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:03:57,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57 WrapperNode [2022-10-16 10:03:57,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:03:57,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:03:57,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:03:57,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:03:57,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,083 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 190 [2022-10-16 10:03:57,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:03:57,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:03:57,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:03:57,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:03:57,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,101 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,118 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:03:57,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:03:57,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:03:57,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:03:57,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (1/1) ... [2022-10-16 10:03:57,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:03:57,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:57,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:03:57,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:03:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:03:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:03:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:03:57,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:03:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:03:57,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:03:57,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:03:57,325 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:03:57,328 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:03:57,762 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:03:57,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:03:57,787 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-10-16 10:03:57,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:03:57 BoogieIcfgContainer [2022-10-16 10:03:57,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:03:57,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:03:57,798 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:03:57,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:03:57,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:03:56" (1/3) ... [2022-10-16 10:03:57,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240d7b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:03:57, skipping insertion in model container [2022-10-16 10:03:57,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:03:57" (2/3) ... [2022-10-16 10:03:57,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240d7b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:03:57, skipping insertion in model container [2022-10-16 10:03:57,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:03:57" (3/3) ... [2022-10-16 10:03:57,809 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_const_m5.c [2022-10-16 10:03:57,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:03:57,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-10-16 10:03:57,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:03:57,951 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;@50f70b68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:03:57,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-10-16 10:03:57,959 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 126 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:57,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 10:03:57,966 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:57,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 10:03:57,968 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:03:57,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:57,977 INFO L85 PathProgramCache]: Analyzing trace with hash 889512652, now seen corresponding path program 1 times [2022-10-16 10:03:57,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:57,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291356827] [2022-10-16 10:03:57,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:57,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:03:58,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:58,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291356827] [2022-10-16 10:03:58,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291356827] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:58,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:58,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:03:58,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406413840] [2022-10-16 10:03:58,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:58,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:03:58,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:58,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:03:58,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:03:58,414 INFO L87 Difference]: Start difference. First operand has 127 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 126 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 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 10:03:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:58,646 INFO L93 Difference]: Finished difference Result 369 states and 434 transitions. [2022-10-16 10:03:58,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:03:58,650 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 10:03:58,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:58,663 INFO L225 Difference]: With dead ends: 369 [2022-10-16 10:03:58,664 INFO L226 Difference]: Without dead ends: 233 [2022-10-16 10:03:58,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:03:58,673 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 111 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:58,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 291 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:03:58,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-10-16 10:03:58,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 123. [2022-10-16 10:03:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.654320987654321) internal successors, (134), 122 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 134 transitions. [2022-10-16 10:03:58,732 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 134 transitions. Word has length 6 [2022-10-16 10:03:58,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:58,732 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 134 transitions. [2022-10-16 10:03:58,733 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 10:03:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 134 transitions. [2022-10-16 10:03:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:03:58,734 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:58,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:58,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:03:58,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:03:58,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:58,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1805037039, now seen corresponding path program 1 times [2022-10-16 10:03:58,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:58,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056868722] [2022-10-16 10:03:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:58,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:03:58,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:58,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056868722] [2022-10-16 10:03:58,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056868722] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:03:58,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:03:58,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:03:58,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628438294] [2022-10-16 10:03:58,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:03:58,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:03:58,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:03:58,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:03:58,859 INFO L87 Difference]: Start difference. First operand 123 states and 134 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:59,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:59,029 INFO L93 Difference]: Finished difference Result 233 states and 253 transitions. [2022-10-16 10:03:59,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:03:59,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-10-16 10:03:59,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:59,032 INFO L225 Difference]: With dead ends: 233 [2022-10-16 10:03:59,032 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:03:59,033 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 10:03:59,039 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:59,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 200 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:03:59,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:03:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-10-16 10:03:59,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 81 states have (on average 1.6419753086419753) internal successors, (133), 122 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2022-10-16 10:03:59,070 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 7 [2022-10-16 10:03:59,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:59,070 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2022-10-16 10:03:59,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:59,071 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2022-10-16 10:03:59,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:03:59,071 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:59,072 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:59,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:03:59,075 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:03:59,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:03:59,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1894413816, now seen corresponding path program 1 times [2022-10-16 10:03:59,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:03:59,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391516511] [2022-10-16 10:03:59,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:59,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:03:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:59,214 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 10:03:59,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:03:59,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391516511] [2022-10-16 10:03:59,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391516511] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:03:59,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340016641] [2022-10-16 10:03:59,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:03:59,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:03:59,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:03:59,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:03:59,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:03:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:03:59,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:03:59,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:03:59,372 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 10:03:59,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:03:59,448 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 10:03:59,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340016641] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:03:59,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:03:59,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:03:59,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981406363] [2022-10-16 10:03:59,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:03:59,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:03:59,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:03:59,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:03:59,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:03:59,460 INFO L87 Difference]: Start difference. First operand 123 states and 133 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 10:03:59,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:03:59,808 INFO L93 Difference]: Finished difference Result 251 states and 275 transitions. [2022-10-16 10:03:59,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:03:59,809 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 10:03:59,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:03:59,813 INFO L225 Difference]: With dead ends: 251 [2022-10-16 10:03:59,813 INFO L226 Difference]: Without dead ends: 250 [2022-10-16 10:03:59,814 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 10:03:59,816 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 328 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:03:59,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 351 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:03:59,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-10-16 10:03:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 134. [2022-10-16 10:03:59,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 92 states have (on average 1.6195652173913044) internal successors, (149), 133 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:03:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2022-10-16 10:03:59,834 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 10 [2022-10-16 10:03:59,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:03:59,834 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2022-10-16 10:03:59,834 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 10:03:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2022-10-16 10:03:59,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:03:59,835 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:03:59,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:03:59,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:00,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:00,061 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:00,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:00,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1402662451, now seen corresponding path program 1 times [2022-10-16 10:04:00,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:00,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453304471] [2022-10-16 10:04:00,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:00,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:00,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:00,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453304471] [2022-10-16 10:04:00,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453304471] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:00,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470102476] [2022-10-16 10:04:00,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:00,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:00,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:00,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:00,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:04:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:00,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:00,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:00,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:00,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:00,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:00,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470102476] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:00,457 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:00,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:04:00,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323744185] [2022-10-16 10:04:00,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:00,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:04:00,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:00,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:04:00,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:04:00,460 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:00,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:00,648 INFO L93 Difference]: Finished difference Result 245 states and 268 transitions. [2022-10-16 10:04:00,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:04:00,649 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 10:04:00,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:00,651 INFO L225 Difference]: With dead ends: 245 [2022-10-16 10:04:00,651 INFO L226 Difference]: Without dead ends: 135 [2022-10-16 10:04:00,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:04:00,654 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 93 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:00,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 353 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:04:00,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-10-16 10:04:00,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 134. [2022-10-16 10:04:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 92 states have (on average 1.608695652173913) internal successors, (148), 133 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 148 transitions. [2022-10-16 10:04:00,666 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 148 transitions. Word has length 11 [2022-10-16 10:04:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:00,667 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 148 transitions. [2022-10-16 10:04:00,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:00,667 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 148 transitions. [2022-10-16 10:04:00,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:04:00,668 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:00,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:04:00,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:00,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 10:04:00,882 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1402713897, now seen corresponding path program 1 times [2022-10-16 10:04:00,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:00,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439028591] [2022-10-16 10:04:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:00,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:01,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:01,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439028591] [2022-10-16 10:04:01,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439028591] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:01,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467997622] [2022-10-16 10:04:01,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:01,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:01,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:01,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:01,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:04:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:01,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:01,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:01,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:04:01,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467997622] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:01,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:04:01,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:04:01,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974456935] [2022-10-16 10:04:01,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:01,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:04:01,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:01,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:04:01,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:04:01,114 INFO L87 Difference]: Start difference. First operand 134 states and 148 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 10:04:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:01,260 INFO L93 Difference]: Finished difference Result 243 states and 266 transitions. [2022-10-16 10:04:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:04:01,260 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 10:04:01,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:01,262 INFO L225 Difference]: With dead ends: 243 [2022-10-16 10:04:01,262 INFO L226 Difference]: Without dead ends: 242 [2022-10-16 10:04:01,263 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 10:04:01,264 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 109 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:01,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 326 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:01,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-10-16 10:04:01,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 133. [2022-10-16 10:04:01,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 92 states have (on average 1.576086956521739) internal successors, (145), 132 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 145 transitions. [2022-10-16 10:04:01,275 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 145 transitions. Word has length 11 [2022-10-16 10:04:01,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:01,276 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 145 transitions. [2022-10-16 10:04:01,276 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 10:04:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 145 transitions. [2022-10-16 10:04:01,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:04:01,277 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:01,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:01,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:01,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:01,491 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:01,492 INFO L85 PathProgramCache]: Analyzing trace with hash 591228023, now seen corresponding path program 2 times [2022-10-16 10:04:01,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:01,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144566939] [2022-10-16 10:04:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:01,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:01,946 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 10:04:01,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:01,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144566939] [2022-10-16 10:04:01,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144566939] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:01,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058272904] [2022-10-16 10:04:01,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:01,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:01,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:01,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:01,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:04:02,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:04:02,003 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:02,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:04:02,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:02,087 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 10:04:02,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:02,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:04:02,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 10:04:02,284 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 10:04:02,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:04,437 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_65| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_65|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_65| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) is different from false [2022-10-16 10:04:07,010 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 23 treesize of output 21 [2022-10-16 10:04:07,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 138 [2022-10-16 10:04:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-10-16 10:04:07,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058272904] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:07,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:07,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 21 [2022-10-16 10:04:07,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275989734] [2022-10-16 10:04:07,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:07,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:04:07,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:04:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=336, Unknown=5, NotChecked=38, Total=462 [2022-10-16 10:04:07,162 INFO L87 Difference]: Start difference. First operand 133 states and 145 transitions. Second operand has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:09,195 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (= (select .cse0 0) 1) (= (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (= |c_ULTIMATE.start_main_~i~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_65| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_65|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_65| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:04:11,203 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= |c_ULTIMATE.start_main_#t~post6#1| 0) (= (select .cse0 0) 1) (forall ((|v_ULTIMATE.start_main_~i~0#1_65| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_65|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_65| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:04:13,277 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= (select .cse0 0) 1) (<= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (= (select .cse0 .cse1) 1) (not (= .cse1 0)) (<= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_65| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_65|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_65| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:04:15,282 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= 0 |c_ULTIMATE.start_main_#t~post6#1|) (= (select .cse0 0) 1) (<= (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (<= |c_ULTIMATE.start_main_~sum~0#1| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_65| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_65|)) (forall ((v_ArrVal_54 Int)) (< (+ (select (store .cse0 (+ (* |v_ULTIMATE.start_main_~i~0#1_65| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= |c_ULTIMATE.start_main_~sum~0#1| 0))) is different from false [2022-10-16 10:04:15,863 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse0 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (and (< |c_ULTIMATE.start_main_~sum~0#1| 9223372036854775807) (= .cse0 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_65| Int) (v_ArrVal_54 Int)) (or (< (+ (select (store .cse1 (+ (* |v_ULTIMATE.start_main_~i~0#1_65| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_54) |c_ULTIMATE.start_main_~a~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~0#1_65| (+ |c_ULTIMATE.start_main_~i~0#1| 1)))) (< (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse1 (+ .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808))) is different from false [2022-10-16 10:04:16,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:16,417 INFO L93 Difference]: Finished difference Result 194 states and 216 transitions. [2022-10-16 10:04:16,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:04:16,418 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:04:16,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:16,419 INFO L225 Difference]: With dead ends: 194 [2022-10-16 10:04:16,419 INFO L226 Difference]: Without dead ends: 192 [2022-10-16 10:04:16,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=139, Invalid=475, Unknown=10, NotChecked=306, Total=930 [2022-10-16 10:04:16,421 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 270 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 156 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:16,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 537 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 951 Invalid, 0 Unknown, 156 Unchecked, 0.6s Time] [2022-10-16 10:04:16,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-10-16 10:04:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 136. [2022-10-16 10:04:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 95 states have (on average 1.568421052631579) internal successors, (149), 135 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:16,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 149 transitions. [2022-10-16 10:04:16,431 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 149 transitions. Word has length 15 [2022-10-16 10:04:16,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:16,431 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 149 transitions. [2022-10-16 10:04:16,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 22 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 149 transitions. [2022-10-16 10:04:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:04:16,432 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:16,432 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:16,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:16,647 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 10:04:16,647 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:16,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:16,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1234401639, now seen corresponding path program 1 times [2022-10-16 10:04:16,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:16,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215377516] [2022-10-16 10:04:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:16,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:16,721 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 10:04:16,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:16,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215377516] [2022-10-16 10:04:16,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215377516] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:16,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:04:16,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:04:16,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545726461] [2022-10-16 10:04:16,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:16,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:04:16,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:04:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:04:16,735 INFO L87 Difference]: Start difference. First operand 136 states and 149 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:16,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:16,838 INFO L93 Difference]: Finished difference Result 330 states and 359 transitions. [2022-10-16 10:04:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:04:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 10:04:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:16,841 INFO L225 Difference]: With dead ends: 330 [2022-10-16 10:04:16,842 INFO L226 Difference]: Without dead ends: 231 [2022-10-16 10:04:16,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:04:16,846 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 309 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:16,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 168 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:16,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-10-16 10:04:16,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 144. [2022-10-16 10:04:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 143 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:16,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 156 transitions. [2022-10-16 10:04:16,859 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 156 transitions. Word has length 17 [2022-10-16 10:04:16,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:16,860 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 156 transitions. [2022-10-16 10:04:16,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 156 transitions. [2022-10-16 10:04:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:04:16,862 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:16,862 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:16,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:04:16,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:16,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:16,864 INFO L85 PathProgramCache]: Analyzing trace with hash -386783092, now seen corresponding path program 1 times [2022-10-16 10:04:16,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:16,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76396712] [2022-10-16 10:04:16,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:16,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:16,910 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 10:04:16,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:16,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76396712] [2022-10-16 10:04:16,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76396712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:16,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:04:16,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:04:16,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260966730] [2022-10-16 10:04:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:16,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:04:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:16,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:04:16,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:04:16,912 INFO L87 Difference]: Start difference. First operand 144 states and 156 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:17,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:17,009 INFO L93 Difference]: Finished difference Result 231 states and 243 transitions. [2022-10-16 10:04:17,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:04:17,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 10:04:17,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:17,011 INFO L225 Difference]: With dead ends: 231 [2022-10-16 10:04:17,012 INFO L226 Difference]: Without dead ends: 229 [2022-10-16 10:04:17,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:04:17,013 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 87 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:17,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 278 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:17,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-10-16 10:04:17,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 147. [2022-10-16 10:04:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 106 states have (on average 1.5) internal successors, (159), 146 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 159 transitions. [2022-10-16 10:04:17,022 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 159 transitions. Word has length 18 [2022-10-16 10:04:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:17,023 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 159 transitions. [2022-10-16 10:04:17,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:17,023 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 159 transitions. [2022-10-16 10:04:17,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:04:17,024 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:17,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:17,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 10:04:17,024 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:17,025 INFO L85 PathProgramCache]: Analyzing trace with hash 742231581, now seen corresponding path program 1 times [2022-10-16 10:04:17,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:17,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566817270] [2022-10-16 10:04:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:17,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:17,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:17,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566817270] [2022-10-16 10:04:17,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566817270] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:17,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817686111] [2022-10-16 10:04:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:17,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:17,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:17,714 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:17,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:04:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:17,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:04:17,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:17,814 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 10:04:17,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:17,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:04:18,205 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:18,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:04:18,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:18,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:18,674 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 42 [2022-10-16 10:04:18,684 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:18,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 696 treesize of output 648 [2022-10-16 10:04:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:18,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817686111] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:18,871 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:18,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 10:04:18,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69475769] [2022-10-16 10:04:18,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:18,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:04:18,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:18,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:04:18,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1071, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:04:18,874 INFO L87 Difference]: Start difference. First operand 147 states and 159 transitions. Second operand has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:20,160 INFO L93 Difference]: Finished difference Result 174 states and 188 transitions. [2022-10-16 10:04:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 10:04:20,161 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-16 10:04:20,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:20,162 INFO L225 Difference]: With dead ends: 174 [2022-10-16 10:04:20,162 INFO L226 Difference]: Without dead ends: 173 [2022-10-16 10:04:20,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=367, Invalid=1889, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 10:04:20,165 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 129 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 284 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:20,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 948 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1314 Invalid, 0 Unknown, 284 Unchecked, 0.8s Time] [2022-10-16 10:04:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-10-16 10:04:20,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 149. [2022-10-16 10:04:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 108 states have (on average 1.5) internal successors, (162), 148 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 162 transitions. [2022-10-16 10:04:20,173 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 162 transitions. Word has length 21 [2022-10-16 10:04:20,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:20,174 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 162 transitions. [2022-10-16 10:04:20,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 36 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:20,174 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 162 transitions. [2022-10-16 10:04:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:04:20,175 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:20,175 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:20,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:20,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:20,381 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:20,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1534342596, now seen corresponding path program 1 times [2022-10-16 10:04:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:20,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151611084] [2022-10-16 10:04:20,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:20,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:20,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:20,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151611084] [2022-10-16 10:04:20,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151611084] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:20,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307596197] [2022-10-16 10:04:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:20,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:20,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:20,710 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:20,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:04:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:20,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 10:04:20,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:20,806 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 10:04:20,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:20,903 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:04:21,186 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:21,187 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 10:04:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:21,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:21,598 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 47 treesize of output 43 [2022-10-16 10:04:21,609 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:21,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 728 treesize of output 680 [2022-10-16 10:04:21,950 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:21,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307596197] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:21,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:21,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 33 [2022-10-16 10:04:21,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495931269] [2022-10-16 10:04:21,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:21,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:04:21,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:21,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:04:21,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=972, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:04:21,954 INFO L87 Difference]: Start difference. First operand 149 states and 162 transitions. Second operand has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:24,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:24,114 INFO L93 Difference]: Finished difference Result 501 states and 535 transitions. [2022-10-16 10:04:24,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-16 10:04:24,114 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 states have internal predecessors, (62), 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 10:04:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:24,117 INFO L225 Difference]: With dead ends: 501 [2022-10-16 10:04:24,118 INFO L226 Difference]: Without dead ends: 500 [2022-10-16 10:04:24,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 905 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=494, Invalid=2812, Unknown=0, NotChecked=0, Total=3306 [2022-10-16 10:04:24,122 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 616 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 2960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 908 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:24,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 1743 Invalid, 2960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1961 Invalid, 0 Unknown, 908 Unchecked, 1.2s Time] [2022-10-16 10:04:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2022-10-16 10:04:24,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 161. [2022-10-16 10:04:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 120 states have (on average 1.4666666666666666) internal successors, (176), 160 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:24,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 176 transitions. [2022-10-16 10:04:24,139 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 176 transitions. Word has length 22 [2022-10-16 10:04:24,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:24,141 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 176 transitions. [2022-10-16 10:04:24,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 1.878787878787879) internal successors, (62), 34 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 176 transitions. [2022-10-16 10:04:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:04:24,144 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:24,144 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 10:04:24,186 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:24,360 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 10:04:24,360 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:24,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:24,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1716489148, now seen corresponding path program 2 times [2022-10-16 10:04:24,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:24,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093715141] [2022-10-16 10:04:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:24,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:24,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:24,477 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 10:04:24,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:24,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093715141] [2022-10-16 10:04:24,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093715141] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:24,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752690305] [2022-10-16 10:04:24,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:24,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:24,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:24,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:24,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:04:24,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:04:24,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:24,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:04:24,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:24,576 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 10:04:24,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:24,617 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 10:04:24,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752690305] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:24,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:24,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:04:24,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215219720] [2022-10-16 10:04:24,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:24,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:04:24,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:24,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:04:24,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:04:24,619 INFO L87 Difference]: Start difference. First operand 161 states and 176 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 10:04:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:24,914 INFO L93 Difference]: Finished difference Result 250 states and 267 transitions. [2022-10-16 10:04:24,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:04:24,915 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 10:04:24,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:24,916 INFO L225 Difference]: With dead ends: 250 [2022-10-16 10:04:24,917 INFO L226 Difference]: Without dead ends: 249 [2022-10-16 10:04:24,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 10:04:24,918 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 518 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:24,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 346 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:04:24,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-16 10:04:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 160. [2022-10-16 10:04:24,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 159 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 175 transitions. [2022-10-16 10:04:24,930 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 175 transitions. Word has length 22 [2022-10-16 10:04:24,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:24,931 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 175 transitions. [2022-10-16 10:04:24,931 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 10:04:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 175 transitions. [2022-10-16 10:04:24,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:04:24,932 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:24,932 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:24,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:25,146 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 10:04:25,147 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:25,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:25,148 INFO L85 PathProgramCache]: Analyzing trace with hash 319932813, now seen corresponding path program 1 times [2022-10-16 10:04:25,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:25,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735188566] [2022-10-16 10:04:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:25,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:25,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:25,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735188566] [2022-10-16 10:04:25,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735188566] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:25,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031707773] [2022-10-16 10:04:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:25,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:25,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:25,214 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:25,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:04:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:25,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:25,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:25,330 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:25,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:25,366 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:25,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031707773] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:25,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:25,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-10-16 10:04:25,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220653701] [2022-10-16 10:04:25,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:25,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-16 10:04:25,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:25,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-16 10:04:25,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:04:25,368 INFO L87 Difference]: Start difference. First operand 160 states and 175 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:25,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:25,580 INFO L93 Difference]: Finished difference Result 356 states and 379 transitions. [2022-10-16 10:04:25,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:04:25,581 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:04:25,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:25,583 INFO L225 Difference]: With dead ends: 356 [2022-10-16 10:04:25,583 INFO L226 Difference]: Without dead ends: 249 [2022-10-16 10:04:25,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:04:25,585 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 469 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:25,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 421 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:04:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-16 10:04:25,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 160. [2022-10-16 10:04:25,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 120 states have (on average 1.4416666666666667) internal successors, (173), 159 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 173 transitions. [2022-10-16 10:04:25,598 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 173 transitions. Word has length 23 [2022-10-16 10:04:25,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:25,598 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 173 transitions. [2022-10-16 10:04:25,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 173 transitions. [2022-10-16 10:04:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:04:25,600 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:25,600 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:25,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:25,813 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 10:04:25,814 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:25,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1329454374, now seen corresponding path program 1 times [2022-10-16 10:04:25,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:25,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305281837] [2022-10-16 10:04:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:25,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:25,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:25,870 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:25,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305281837] [2022-10-16 10:04:25,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305281837] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:25,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930122428] [2022-10-16 10:04:25,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:25,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:25,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:25,873 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:25,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:04:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:25,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:25,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:25,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:25,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:25,988 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:25,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930122428] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:25,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:25,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:04:25,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323418350] [2022-10-16 10:04:25,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:25,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:04:25,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:25,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:04:25,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:04:25,991 INFO L87 Difference]: Start difference. First operand 160 states and 173 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:26,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:26,185 INFO L93 Difference]: Finished difference Result 269 states and 286 transitions. [2022-10-16 10:04:26,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:04:26,186 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 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 24 [2022-10-16 10:04:26,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:26,188 INFO L225 Difference]: With dead ends: 269 [2022-10-16 10:04:26,188 INFO L226 Difference]: Without dead ends: 268 [2022-10-16 10:04:26,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 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 10:04:26,191 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 122 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:26,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 457 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:26,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2022-10-16 10:04:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 175. [2022-10-16 10:04:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 135 states have (on average 1.4592592592592593) internal successors, (197), 174 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:26,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 197 transitions. [2022-10-16 10:04:26,213 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 197 transitions. Word has length 24 [2022-10-16 10:04:26,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:26,216 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 197 transitions. [2022-10-16 10:04:26,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 12 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 197 transitions. [2022-10-16 10:04:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:04:26,221 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:26,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:26,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:26,436 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 10:04:26,436 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:26,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1736587295, now seen corresponding path program 1 times [2022-10-16 10:04:26,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:26,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957317441] [2022-10-16 10:04:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:26,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:26,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:26,533 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 10:04:26,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957317441] [2022-10-16 10:04:26,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957317441] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:26,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748797101] [2022-10-16 10:04:26,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:26,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:26,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:26,536 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:26,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:04:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:26,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:04:26,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:26,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 10:04:26,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:04:26,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748797101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:04:26,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:04:26,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:04:26,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542241906] [2022-10-16 10:04:26,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:04:26,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:04:26,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:26,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:04:26,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:04:26,618 INFO L87 Difference]: Start difference. First operand 175 states and 197 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:26,730 INFO L93 Difference]: Finished difference Result 257 states and 279 transitions. [2022-10-16 10:04:26,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:04:26,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:04:26,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:26,733 INFO L225 Difference]: With dead ends: 257 [2022-10-16 10:04:26,733 INFO L226 Difference]: Without dead ends: 256 [2022-10-16 10:04:26,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:04:26,734 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 98 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:26,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 334 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:04:26,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-10-16 10:04:26,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 174. [2022-10-16 10:04:26,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 135 states have (on average 1.4370370370370371) internal successors, (194), 173 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:26,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 194 transitions. [2022-10-16 10:04:26,749 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 194 transitions. Word has length 25 [2022-10-16 10:04:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:26,749 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 194 transitions. [2022-10-16 10:04:26,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:26,750 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 194 transitions. [2022-10-16 10:04:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:04:26,750 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:26,751 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:26,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:04:26,966 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 10:04:26,966 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:26,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:26,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1881889603, now seen corresponding path program 2 times [2022-10-16 10:04:26,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:26,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058675] [2022-10-16 10:04:26,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:26,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:27,126 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:27,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:27,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058675] [2022-10-16 10:04:27,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058675] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:27,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288439619] [2022-10-16 10:04:27,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:27,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:27,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:27,128 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:04:27,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:04:27,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:04:27,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:27,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:04:27,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:27,325 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:27,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:27,435 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:27,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288439619] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:27,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:27,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:04:27,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000334161] [2022-10-16 10:04:27,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:27,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:04:27,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:27,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:04:27,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:04:27,438 INFO L87 Difference]: Start difference. First operand 174 states and 194 transitions. Second operand has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:27,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:27,905 INFO L93 Difference]: Finished difference Result 585 states and 628 transitions. [2022-10-16 10:04:27,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:04:27,905 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 10:04:27,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:27,908 INFO L225 Difference]: With dead ends: 585 [2022-10-16 10:04:27,908 INFO L226 Difference]: Without dead ends: 459 [2022-10-16 10:04:27,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=157, Invalid=713, Unknown=0, NotChecked=0, Total=870 [2022-10-16 10:04:27,910 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 545 mSDsluCounter, 1119 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:27,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1211 Invalid, 727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:04:27,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-10-16 10:04:27,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 188. [2022-10-16 10:04:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 149 states have (on average 1.395973154362416) internal successors, (208), 187 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:27,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 208 transitions. [2022-10-16 10:04:27,926 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 208 transitions. Word has length 27 [2022-10-16 10:04:27,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:27,926 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 208 transitions. [2022-10-16 10:04:27,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.409090909090909) internal successors, (53), 22 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:27,927 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 208 transitions. [2022-10-16 10:04:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:04:27,927 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:27,928 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 10:04:27,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-10-16 10:04:28,141 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 10:04:28,142 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:28,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:28,143 INFO L85 PathProgramCache]: Analyzing trace with hash 314631475, now seen corresponding path program 2 times [2022-10-16 10:04:28,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:28,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268723625] [2022-10-16 10:04:28,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:28,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:28,957 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:28,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:28,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268723625] [2022-10-16 10:04:28,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268723625] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:28,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202947521] [2022-10-16 10:04:28,959 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:04:28,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:28,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:28,960 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 10:04:28,978 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 10:04:29,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:04:29,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:04:29,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 29 conjunts are in the unsatisfiable core [2022-10-16 10:04:29,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:29,055 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 10:04:29,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:29,160 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 10:04:29,683 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:29,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 10:04:29,708 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:29,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:04:30,389 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 44 [2022-10-16 10:04:30,404 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:04:30,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1482 treesize of output 1386 [2022-10-16 10:04:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:31,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202947521] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:04:31,198 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:04:31,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 44 [2022-10-16 10:04:31,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417296896] [2022-10-16 10:04:31,199 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:04:31,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-10-16 10:04:31,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:04:31,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-10-16 10:04:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1663, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:04:31,201 INFO L87 Difference]: Start difference. First operand 188 states and 208 transitions. Second operand has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:33,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:04:33,677 INFO L93 Difference]: Finished difference Result 218 states and 237 transitions. [2022-10-16 10:04:33,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 10:04:33,677 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 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 29 [2022-10-16 10:04:33,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:04:33,679 INFO L225 Difference]: With dead ends: 218 [2022-10-16 10:04:33,679 INFO L226 Difference]: Without dead ends: 217 [2022-10-16 10:04:33,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1239 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=797, Invalid=3895, Unknown=0, NotChecked=0, Total=4692 [2022-10-16 10:04:33,682 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 253 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 324 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 10:04:33,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 841 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1178 Invalid, 0 Unknown, 324 Unchecked, 0.8s Time] [2022-10-16 10:04:33,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-10-16 10:04:33,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 191. [2022-10-16 10:04:33,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 152 states have (on average 1.388157894736842) internal successors, (211), 190 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:33,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 211 transitions. [2022-10-16 10:04:33,699 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 211 transitions. Word has length 29 [2022-10-16 10:04:33,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:04:33,699 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 211 transitions. [2022-10-16 10:04:33,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 1.8863636363636365) internal successors, (83), 45 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:04:33,700 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 211 transitions. [2022-10-16 10:04:33,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:04:33,700 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:04:33,700 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:04:33,741 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 10:04:33,915 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 10:04:33,916 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:04:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:04:33,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1163641220, now seen corresponding path program 1 times [2022-10-16 10:04:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:04:33,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997105068] [2022-10-16 10:04:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:33,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:04:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:34,739 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:04:34,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:04:34,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997105068] [2022-10-16 10:04:34,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997105068] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:04:34,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407716430] [2022-10-16 10:04:34,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:04:34,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:04:34,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:04:34,741 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 10:04:34,765 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 10:04:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:04:34,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 10:04:34,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:04:34,857 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 10:04:34,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:04:34,949 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:04:35,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-16 10:04:35,149 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:04:35,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:05:16,389 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 23 treesize of output 21 [2022-10-16 10:05:16,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2022-10-16 10:05:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 10:05:16,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407716430] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:05:16,446 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:05:16,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 32 [2022-10-16 10:05:16,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821685460] [2022-10-16 10:05:16,447 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:05:16,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 10:05:16,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:05:16,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 10:05:16,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=833, Unknown=21, NotChecked=0, Total=1056 [2022-10-16 10:05:16,449 INFO L87 Difference]: Start difference. First operand 191 states and 211 transitions. Second operand has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:21,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:05:21,925 INFO L93 Difference]: Finished difference Result 293 states and 312 transitions. [2022-10-16 10:05:21,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:05:21,926 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 states have internal predecessors, (82), 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 30 [2022-10-16 10:05:21,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:05:21,927 INFO L225 Difference]: With dead ends: 293 [2022-10-16 10:05:21,928 INFO L226 Difference]: Without dead ends: 291 [2022-10-16 10:05:21,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 46.0s TimeCoverageRelationStatistics Valid=380, Invalid=1667, Unknown=23, NotChecked=0, Total=2070 [2022-10-16 10:05:21,930 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 831 mSDsluCounter, 741 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 422 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:05:21,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 802 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1483 Invalid, 0 Unknown, 422 Unchecked, 1.0s Time] [2022-10-16 10:05:21,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-10-16 10:05:21,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 175. [2022-10-16 10:05:21,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 136 states have (on average 1.4191176470588236) internal successors, (193), 174 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-10-16 10:05:21,962 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 30 [2022-10-16 10:05:21,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:05:21,962 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-10-16 10:05:21,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.5625) internal successors, (82), 33 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:05:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-10-16 10:05:21,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 10:05:21,963 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:05:21,963 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:05:22,008 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 10:05:22,178 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 10:05:22,178 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-10-16 10:05:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:05:22,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1003433593, now seen corresponding path program 3 times [2022-10-16 10:05:22,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:05:22,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743410441] [2022-10-16 10:05:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:05:22,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:05:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:05:23,427 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:23,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:05:23,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743410441] [2022-10-16 10:05:23,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743410441] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:05:23,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528740092] [2022-10-16 10:05:23,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:05:23,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:05:23,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:05:23,429 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 10:05:23,437 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 10:05:23,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 10:05:23,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:05:23,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 38 conjunts are in the unsatisfiable core [2022-10-16 10:05:23,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:05:23,528 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 10:05:23,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:23,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 10:05:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:23,800 INFO L356 Elim1Store]: treesize reduction 30, result has 49.2 percent of original size [2022-10-16 10:05:23,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 46 [2022-10-16 10:05:25,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:25,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:05:25,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:05:25,025 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:05:25,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 21 [2022-10-16 10:05:25,069 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:05:25,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:06:02,924 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 91 treesize of output 85 [2022-10-16 10:06:02,990 INFO L356 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-10-16 10:06:02,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 943934 treesize of output 894782 [2022-10-16 10:06:29,401 WARN L233 SmtUtils]: Spent 16.25s on a formula simplification. DAG size of input: 829 DAG size of output: 829 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)